diff --git a/resources/sql/autopatches/20160225.almanac.2.stype.sql b/resources/sql/autopatches/20160225.almanac.2.stype.sql
new file mode 100644
--- /dev/null
+++ b/resources/sql/autopatches/20160225.almanac.2.stype.sql
@@ -0,0 +1,2 @@
+ALTER TABLE {$NAMESPACE}_almanac.almanac_service
+  CHANGE serviceClass serviceType VARCHAR(64) NOT NULL COLLATE {$COLLATE_TEXT};
diff --git a/resources/sql/autopatches/20160225.almanac.3.stype.php b/resources/sql/autopatches/20160225.almanac.3.stype.php
new file mode 100644
--- /dev/null
+++ b/resources/sql/autopatches/20160225.almanac.3.stype.php
@@ -0,0 +1,30 @@
+<?php
+
+// Previously, Almanac services stored a "serviceClass". Migrate these to
+// new "serviceType" values.
+
+$table = new AlmanacService();
+$conn_w = $table->establishConnection('w');
+
+foreach (new LiskMigrationIterator($table) as $service) {
+
+  $new_type = null;
+  try {
+    $old_type = $service->getServiceType();
+    $object = newv($old_type, array());
+    $new_type = $object->getServiceTypeConstant();
+  } catch (Exception $ex) {
+    continue;
+  }
+
+  if (!$new_type) {
+    continue;
+  }
+
+  queryfx(
+    $conn_w,
+    'UPDATE %T SET serviceType = %s WHERE id = %d',
+    $table->getTableName(),
+    $new_type,
+    $service->getID());
+}
diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -25,7 +25,6 @@
     'AlmanacClusterDatabaseServiceType' => 'applications/almanac/servicetype/AlmanacClusterDatabaseServiceType.php',
     'AlmanacClusterRepositoryServiceType' => 'applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php',
     'AlmanacClusterServiceType' => 'applications/almanac/servicetype/AlmanacClusterServiceType.php',
-    'AlmanacConduitAPIMethod' => 'applications/almanac/conduit/AlmanacConduitAPIMethod.php',
     'AlmanacConsoleController' => 'applications/almanac/controller/AlmanacConsoleController.php',
     'AlmanacController' => 'applications/almanac/controller/AlmanacController.php',
     'AlmanacCreateDevicesCapability' => 'applications/almanac/capability/AlmanacCreateDevicesCapability.php',
@@ -101,8 +100,6 @@
     'AlmanacPropertyInterface' => 'applications/almanac/property/AlmanacPropertyInterface.php',
     'AlmanacPropertyQuery' => 'applications/almanac/query/AlmanacPropertyQuery.php',
     'AlmanacQuery' => 'applications/almanac/query/AlmanacQuery.php',
-    'AlmanacQueryDevicesConduitAPIMethod' => 'applications/almanac/conduit/AlmanacQueryDevicesConduitAPIMethod.php',
-    'AlmanacQueryServicesConduitAPIMethod' => 'applications/almanac/conduit/AlmanacQueryServicesConduitAPIMethod.php',
     'AlmanacSchemaSpec' => 'applications/almanac/storage/AlmanacSchemaSpec.php',
     'AlmanacSearchEngineAttachment' => 'applications/almanac/engineextension/AlmanacSearchEngineAttachment.php',
     'AlmanacService' => 'applications/almanac/storage/AlmanacService.php',
@@ -120,6 +117,7 @@
     'AlmanacServiceTransaction' => 'applications/almanac/storage/AlmanacServiceTransaction.php',
     'AlmanacServiceTransactionQuery' => 'applications/almanac/query/AlmanacServiceTransactionQuery.php',
     'AlmanacServiceType' => 'applications/almanac/servicetype/AlmanacServiceType.php',
+    'AlmanacServiceTypeDatasource' => 'applications/almanac/typeahead/AlmanacServiceTypeDatasource.php',
     'AlmanacServiceTypeTestCase' => 'applications/almanac/servicetype/__tests__/AlmanacServiceTypeTestCase.php',
     'AlmanacServiceViewController' => 'applications/almanac/controller/AlmanacServiceViewController.php',
     'AlmanacTransaction' => 'applications/almanac/storage/AlmanacTransaction.php',
@@ -4012,7 +4010,6 @@
     'AlmanacClusterDatabaseServiceType' => 'AlmanacClusterServiceType',
     'AlmanacClusterRepositoryServiceType' => 'AlmanacClusterServiceType',
     'AlmanacClusterServiceType' => 'AlmanacServiceType',
-    'AlmanacConduitAPIMethod' => 'ConduitAPIMethod',
     'AlmanacConsoleController' => 'AlmanacController',
     'AlmanacController' => 'PhabricatorController',
     'AlmanacCreateDevicesCapability' => 'PhabricatorPolicyCapability',
@@ -4120,8 +4117,6 @@
     'AlmanacPropertyEditEngine' => 'PhabricatorEditEngine',
     'AlmanacPropertyQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
     'AlmanacQuery' => 'PhabricatorCursorPagedPolicyAwareQuery',
-    'AlmanacQueryDevicesConduitAPIMethod' => 'AlmanacConduitAPIMethod',
-    'AlmanacQueryServicesConduitAPIMethod' => 'AlmanacConduitAPIMethod',
     'AlmanacSchemaSpec' => 'PhabricatorConfigSchemaSpec',
     'AlmanacSearchEngineAttachment' => 'PhabricatorSearchEngineAttachment',
     'AlmanacService' => array(
@@ -4149,6 +4144,7 @@
     'AlmanacServiceTransaction' => 'AlmanacTransaction',
     'AlmanacServiceTransactionQuery' => 'PhabricatorApplicationTransactionQuery',
     'AlmanacServiceType' => 'Phobject',
+    'AlmanacServiceTypeDatasource' => 'PhabricatorTypeaheadDatasource',
     'AlmanacServiceTypeTestCase' => 'PhabricatorTestCase',
     'AlmanacServiceViewController' => 'AlmanacServiceController',
     'AlmanacTransaction' => 'PhabricatorApplicationTransaction',
diff --git a/src/applications/almanac/conduit/AlmanacConduitAPIMethod.php b/src/applications/almanac/conduit/AlmanacConduitAPIMethod.php
deleted file mode 100644
--- a/src/applications/almanac/conduit/AlmanacConduitAPIMethod.php
+++ /dev/null
@@ -1,73 +0,0 @@
-<?php
-
-abstract class AlmanacConduitAPIMethod extends ConduitAPIMethod {
-
-  final public function getApplication() {
-    return PhabricatorApplication::getByClass(
-      'PhabricatorAlmanacApplication');
-  }
-
-  public function getMethodStatus() {
-    return self::METHOD_STATUS_DEPRECATED;
-  }
-
-  public function getMethodStatusDescription() {
-    return pht(
-      'Almanac is a prototype application and its APIs are '.
-      'subject to change.');
-  }
-
-  protected function getServiceDictionary(AlmanacService $service) {
-    return array(
-      'id' => (int)$service->getID(),
-      'phid' => $service->getPHID(),
-      'name' => $service->getName(),
-      'uri' => PhabricatorEnv::getProductionURI($service->getURI()),
-      'serviceClass' => $service->getServiceClass(),
-      'properties' => $this->getPropertiesDictionary($service),
-    );
-  }
-
-  protected function getBindingDictionary(AlmanacBinding $binding) {
-    return array(
-      'id' => (int)$binding->getID(),
-      'phid' => $binding->getPHID(),
-      'properties' => $this->getPropertiesDictionary($binding),
-      'interface' => $this->getInterfaceDictionary($binding->getInterface()),
-    );
-  }
-
-  protected function getPropertiesDictionary(AlmanacPropertyInterface $obj) {
-    $properties = $obj->getAlmanacProperties();
-    return (object)mpull($properties, 'getFieldValue', 'getFieldName');
-  }
-
-  protected function getInterfaceDictionary(AlmanacInterface $interface) {
-    return array(
-      'id' => (int)$interface->getID(),
-      'phid' => $interface->getPHID(),
-      'address' => $interface->getAddress(),
-      'port' => (int)$interface->getPort(),
-      'device' => $this->getDeviceDictionary($interface->getDevice()),
-      'network' => $this->getNetworkDictionary($interface->getNetwork()),
-    );
-  }
-
-  protected function getDeviceDictionary(AlmanacDevice $device) {
-    return array(
-      'id' => (int)$device->getID(),
-      'phid' => $device->getPHID(),
-      'name' => $device->getName(),
-      'properties' => $this->getPropertiesDictionary($device),
-    );
-  }
-
-  protected function getNetworkDictionary(AlmanacNetwork $network) {
-    return array(
-      'id' => (int)$network->getID(),
-      'phid' => $network->getPHID(),
-      'name' => $network->getName(),
-    );
-  }
-
-}
diff --git a/src/applications/almanac/conduit/AlmanacQueryDevicesConduitAPIMethod.php b/src/applications/almanac/conduit/AlmanacQueryDevicesConduitAPIMethod.php
deleted file mode 100644
--- a/src/applications/almanac/conduit/AlmanacQueryDevicesConduitAPIMethod.php
+++ /dev/null
@@ -1,63 +0,0 @@
-<?php
-
-final class AlmanacQueryDevicesConduitAPIMethod
-  extends AlmanacConduitAPIMethod {
-
-  public function getAPIMethodName() {
-    return 'almanac.querydevices';
-  }
-
-  public function getMethodDescription() {
-    return pht('Query Almanac devices.');
-  }
-
-  protected function defineParamTypes() {
-    return array(
-      'ids' => 'optional list<id>',
-      'phids' => 'optional list<phid>',
-      'names' => 'optional list<phid>',
-    ) + self::getPagerParamTypes();
-  }
-
-  protected function defineReturnType() {
-    return 'list<wild>';
-  }
-
-  protected function execute(ConduitAPIRequest $request) {
-    $viewer = $request->getUser();
-
-    $query = id(new AlmanacDeviceQuery())
-      ->setViewer($viewer);
-
-    $ids = $request->getValue('ids');
-    if ($ids !== null) {
-      $query->withIDs($ids);
-    }
-
-    $phids = $request->getValue('phids');
-    if ($phids !== null) {
-      $query->withPHIDs($phids);
-    }
-
-    $names = $request->getValue('names');
-    if ($names !== null) {
-      $query->withNames($names);
-    }
-
-    $pager = $this->newPager($request);
-
-    $devices = $query->executeWithCursorPager($pager);
-
-    $data = array();
-    foreach ($devices as $device) {
-      $data[] = $this->getDeviceDictionary($device);
-    }
-
-    $results = array(
-      'data' => $data,
-    );
-
-    return $this->addPagerResults($results, $pager);
-  }
-
-}
diff --git a/src/applications/almanac/conduit/AlmanacQueryServicesConduitAPIMethod.php b/src/applications/almanac/conduit/AlmanacQueryServicesConduitAPIMethod.php
deleted file mode 100644
--- a/src/applications/almanac/conduit/AlmanacQueryServicesConduitAPIMethod.php
+++ /dev/null
@@ -1,86 +0,0 @@
-<?php
-
-final class AlmanacQueryServicesConduitAPIMethod
-  extends AlmanacConduitAPIMethod {
-
-  public function getAPIMethodName() {
-    return 'almanac.queryservices';
-  }
-
-  public function getMethodDescription() {
-    return pht('Query Almanac services.');
-  }
-
-  protected function defineParamTypes() {
-    return array(
-      'ids' => 'optional list<id>',
-      'phids' => 'optional list<phid>',
-      'names' => 'optional list<phid>',
-      'devicePHIDs' => 'optional list<phid>',
-      'serviceClasses' => 'optional list<string>',
-    ) + self::getPagerParamTypes();
-  }
-
-  protected function defineReturnType() {
-    return 'list<wild>';
-  }
-
-  protected function execute(ConduitAPIRequest $request) {
-    $viewer = $request->getUser();
-
-    $query = id(new AlmanacServiceQuery())
-      ->setViewer($viewer)
-      ->needBindings(true);
-
-    $ids = $request->getValue('ids');
-    if ($ids !== null) {
-      $query->withIDs($ids);
-    }
-
-    $phids = $request->getValue('phids');
-    if ($phids !== null) {
-      $query->withPHIDs($phids);
-    }
-
-    $names = $request->getValue('names');
-    if ($names !== null) {
-      $query->withNames($names);
-    }
-
-    $classes = $request->getValue('serviceClasses');
-    if ($classes !== null) {
-      $query->withServiceClasses($classes);
-    }
-
-    $device_phids = $request->getValue('devicePHIDs');
-    if ($device_phids !== null) {
-      $query->withDevicePHIDs($device_phids);
-    }
-
-    $pager = $this->newPager($request);
-
-    $services = $query->executeWithCursorPager($pager);
-
-    $data = array();
-    foreach ($services as $service) {
-      $phid = $service->getPHID();
-
-      $service_bindings = $service->getBindings();
-      $service_bindings = array_values($service_bindings);
-      foreach ($service_bindings as $key => $service_binding) {
-        $service_bindings[$key] = $this->getBindingDictionary($service_binding);
-      }
-
-      $data[] = $this->getServiceDictionary($service) + array(
-        'bindings' => $service_bindings,
-      );
-    }
-
-    $results = array(
-      'data' => $data,
-    );
-
-    return $this->addPagerResults($results, $pager);
-  }
-
-}
diff --git a/src/applications/almanac/controller/AlmanacServiceEditController.php b/src/applications/almanac/controller/AlmanacServiceEditController.php
--- a/src/applications/almanac/controller/AlmanacServiceEditController.php
+++ b/src/applications/almanac/controller/AlmanacServiceEditController.php
@@ -34,21 +34,19 @@
       $this->requireApplicationCapability(
         AlmanacCreateServicesCapability::CAPABILITY);
 
-      $service_class = $request->getStr('serviceClass');
-      $service_types = AlmanacServiceType::getAllServiceTypes();
-      if (empty($service_types[$service_class])) {
-        return $this->buildServiceTypeResponse($service_types, $cancel_uri);
+      $service_type = $request->getStr('serviceType');
+
+      try {
+        $service = AlmanacService::initializeNewService($service_type);
+      } catch (Exception $ex) {
+        return $this->buildServiceTypeResponse($cancel_uri);
       }
 
-      $service_type = $service_types[$service_class];
-      if ($service_type->isClusterServiceType()) {
+      if ($service->isClusterService()) {
         $this->requireApplicationCapability(
           AlmanacManageClusterServicesCapability::CAPABILITY);
       }
 
-      $service = AlmanacService::initializeNewService();
-      $service->setServiceClass($service_class);
-      $service->attachServiceType($service_type);
       $is_new = true;
 
       $title = pht('Create Service');
@@ -125,7 +123,7 @@
     $form = id(new AphrontFormView())
       ->setUser($viewer)
       ->addHiddenInput('edit', true)
-      ->addHiddenInput('serviceClass', $service->getServiceClass())
+      ->addHiddenInput('serviceType', $service->getServiceType())
       ->appendChild(
         id(new AphrontFormTextControl())
           ->setLabel(pht('Name'))
@@ -177,7 +175,9 @@
       ));
   }
 
-  private function buildServiceTypeResponse(array $service_types, $cancel_uri) {
+  private function buildServiceTypeResponse($cancel_uri) {
+    $service_types = AlmanacServiceType::getAllServiceTypes();
+
     $request = $this->getRequest();
     $viewer = $this->getViewer();
 
@@ -197,7 +197,7 @@
 
     $type_control = id(new AphrontFormRadioButtonControl())
       ->setLabel(pht('Service Type'))
-      ->setName('serviceClass')
+      ->setName('serviceType')
       ->setError($e_service);
 
     foreach ($service_types as $service_type) {
@@ -211,7 +211,7 @@
       }
 
       $type_control->addButton(
-        get_class($service_type),
+        $service_type->getServiceTypeConstant(),
         $service_type->getServiceTypeName(),
         array(
           $service_type->getServiceTypeDescription(),
diff --git a/src/applications/almanac/controller/AlmanacServiceViewController.php b/src/applications/almanac/controller/AlmanacServiceViewController.php
--- a/src/applications/almanac/controller/AlmanacServiceViewController.php
+++ b/src/applications/almanac/controller/AlmanacServiceViewController.php
@@ -76,7 +76,7 @@
 
     $properties->addProperty(
       pht('Service Type'),
-      $service->getServiceType()->getServiceTypeShortName());
+      $service->getServiceImplementation()->getServiceTypeShortName());
 
     return $properties;
   }
diff --git a/src/applications/almanac/query/AlmanacServiceQuery.php b/src/applications/almanac/query/AlmanacServiceQuery.php
--- a/src/applications/almanac/query/AlmanacServiceQuery.php
+++ b/src/applications/almanac/query/AlmanacServiceQuery.php
@@ -6,7 +6,7 @@
   private $ids;
   private $phids;
   private $names;
-  private $serviceClasses;
+  private $serviceTypes;
   private $devicePHIDs;
   private $namePrefix;
   private $nameSuffix;
@@ -28,8 +28,8 @@
     return $this;
   }
 
-  public function withServiceClasses(array $classes) {
-    $this->serviceClasses = $classes;
+  public function withServiceTypes(array $types) {
+    $this->serviceTypes = $types;
     return $this;
   }
 
@@ -109,11 +109,11 @@
         $hashes);
     }
 
-    if ($this->serviceClasses !== null) {
+    if ($this->serviceTypes !== null) {
       $where[] = qsprintf(
         $conn,
-        'service.serviceClass IN (%Ls)',
-        $this->serviceClasses);
+        'service.serviceType IN (%Ls)',
+        $this->serviceTypes);
     }
 
     if ($this->devicePHIDs !== null) {
@@ -141,17 +141,19 @@
   }
 
   protected function willFilterPage(array $services) {
-    $service_types = AlmanacServiceType::getAllServiceTypes();
+    $service_map = AlmanacServiceType::getAllServiceTypes();
 
     foreach ($services as $key => $service) {
-      $service_class = $service->getServiceClass();
-      $service_type = idx($service_types, $service_class);
-      if (!$service_type) {
+      $implementation = idx($service_map, $service->getServiceType());
+
+      if (!$implementation) {
         $this->didRejectResult($service);
         unset($services[$key]);
         continue;
       }
-      $service->attachServiceType($service_type);
+
+      $implementation = clone $implementation;
+      $service->attachServiceImplementation($implementation);
     }
 
     return $services;
diff --git a/src/applications/almanac/query/AlmanacServiceSearchEngine.php b/src/applications/almanac/query/AlmanacServiceSearchEngine.php
--- a/src/applications/almanac/query/AlmanacServiceSearchEngine.php
+++ b/src/applications/almanac/query/AlmanacServiceSearchEngine.php
@@ -16,7 +16,7 @@
   }
 
   public function newResultObject() {
-    return AlmanacService::initializeNewService();
+    return new AlmanacService();
   }
 
   protected function buildQueryFromParameters(array $map) {
@@ -34,6 +34,10 @@
       $query->withDevicePHIDs($map['devicePHIDs']);
     }
 
+    if ($map['serviceTypes']) {
+      $query->withServiceTypes($map['serviceTypes']);
+    }
+
     return $query;
   }
 
@@ -48,6 +52,11 @@
         ->setLabel(pht('Exact Names'))
         ->setKey('names')
         ->setDescription(pht('Search for services with specific names.')),
+      id(new PhabricatorSearchDatasourceField())
+        ->setLabel(pht('Service Types'))
+        ->setKey('serviceTypes')
+        ->setDescription(pht('Find services by type.'))
+        ->setDatasource(id(new AlmanacServiceTypeDatasource())),
       id(new PhabricatorPHIDsSearchField())
         ->setLabel(pht('Devices'))
         ->setKey('devicePHIDs')
@@ -98,8 +107,8 @@
         ->setHref($service->getURI())
         ->setObject($service)
         ->addIcon(
-          $service->getServiceType()->getServiceTypeIcon(),
-          $service->getServiceType()->getServiceTypeShortName());
+          $service->getServiceImplementation()->getServiceTypeIcon(),
+          $service->getServiceImplementation()->getServiceTypeShortName());
 
       $list->addItem($item);
     }
diff --git a/src/applications/almanac/servicetype/AlmanacClusterDatabaseServiceType.php b/src/applications/almanac/servicetype/AlmanacClusterDatabaseServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacClusterDatabaseServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacClusterDatabaseServiceType.php
@@ -3,6 +3,8 @@
 final class AlmanacClusterDatabaseServiceType
   extends AlmanacClusterServiceType {
 
+  const SERVICETYPE = 'cluster.database';
+
   public function getServiceTypeShortName() {
     return pht('Cluster Database');
   }
diff --git a/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php b/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacClusterRepositoryServiceType.php
@@ -3,6 +3,8 @@
 final class AlmanacClusterRepositoryServiceType
   extends AlmanacClusterServiceType {
 
+  const SERVICETYPE = 'cluster.repository';
+
   public function getServiceTypeShortName() {
     return pht('Cluster Repository');
   }
diff --git a/src/applications/almanac/servicetype/AlmanacCustomServiceType.php b/src/applications/almanac/servicetype/AlmanacCustomServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacCustomServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacCustomServiceType.php
@@ -2,6 +2,8 @@
 
 final class AlmanacCustomServiceType extends AlmanacServiceType {
 
+  const SERVICETYPE = 'almanac.custom';
+
   public function getServiceTypeShortName() {
     return pht('Custom');
   }
diff --git a/src/applications/almanac/servicetype/AlmanacDrydockPoolServiceType.php b/src/applications/almanac/servicetype/AlmanacDrydockPoolServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacDrydockPoolServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacDrydockPoolServiceType.php
@@ -2,6 +2,8 @@
 
 final class AlmanacDrydockPoolServiceType extends AlmanacServiceType {
 
+  const SERVICETYPE = 'drydock.pool';
+
   public function getServiceTypeShortName() {
     return pht('Drydock Pool');
   }
diff --git a/src/applications/almanac/servicetype/AlmanacServiceType.php b/src/applications/almanac/servicetype/AlmanacServiceType.php
--- a/src/applications/almanac/servicetype/AlmanacServiceType.php
+++ b/src/applications/almanac/servicetype/AlmanacServiceType.php
@@ -30,6 +30,11 @@
   abstract public function getServiceTypeDescription();
 
 
+  final public function getServiceTypeConstant() {
+    return $this->getPhobjectClassConstant('SERVICETYPE', 64);
+  }
+
+
   public function getServiceTypeIcon() {
     return 'fa-cog';
   }
@@ -38,7 +43,7 @@
    * Return `true` if this service type is a Phabricator cluster service type.
    *
    * These special services change the behavior of Phabricator, and require
-   * elevated permission to create.
+   * elevated permission to create and edit.
    *
    * @return bool True if this is a Phabricator cluster service type.
    */
@@ -63,6 +68,7 @@
   public static function getAllServiceTypes() {
     return id(new PhutilClassMapQuery())
       ->setAncestorClass(__CLASS__)
+      ->setUniqueMethod('getServiceTypeConstant')
       ->setSortMethod('getServiceTypeName')
       ->execute();
   }
diff --git a/src/applications/almanac/storage/AlmanacProperty.php b/src/applications/almanac/storage/AlmanacProperty.php
--- a/src/applications/almanac/storage/AlmanacProperty.php
+++ b/src/applications/almanac/storage/AlmanacProperty.php
@@ -39,6 +39,46 @@
     return $this;
   }
 
+  public static function newPropertyUpdateTransactions(
+    AlmanacPropertyInterface $object,
+    array $properties,
+    $only_builtins = false) {
+
+    $template = $object->getApplicationTransactionTemplate();
+    $builtins = $object->getAlmanacPropertyFieldSpecifications();
+
+    $xactions = array();
+    foreach ($properties as $name => $property) {
+      if ($only_builtins && empty($builtins[$name])) {
+        continue;
+      }
+
+      $xactions[] = id(clone $template)
+        ->setTransactionType(AlmanacTransaction::TYPE_PROPERTY_UPDATE)
+        ->setMetadataValue('almanac.property', $name)
+        ->setNewValue($property);
+    }
+
+    return $xactions;
+  }
+
+  public static function newPropertyRemoveTransactions(
+    AlmanacPropertyInterface $object,
+    array $properties) {
+
+    $template = $object->getApplicationTransactionTemplate();
+
+    $xactions = array();
+    foreach ($properties as $property) {
+      $xactions[] = id(clone $template)
+        ->setTransactionType(AlmanacTransaction::TYPE_PROPERTY_REMOVE)
+        ->setMetadataValue('almanac.property', $property)
+        ->setNewValue(null);
+    }
+
+    return $xactions;
+  }
+
   public function save() {
     $hash = PhabricatorHash::digestForIndex($this->getFieldName());
     $this->setFieldIndex($hash);
diff --git a/src/applications/almanac/storage/AlmanacService.php b/src/applications/almanac/storage/AlmanacService.php
--- a/src/applications/almanac/storage/AlmanacService.php
+++ b/src/applications/almanac/storage/AlmanacService.php
@@ -17,17 +17,29 @@
   protected $mailKey;
   protected $viewPolicy;
   protected $editPolicy;
-  protected $serviceClass;
+  protected $serviceType;
 
   private $almanacProperties = self::ATTACHABLE;
   private $bindings = self::ATTACHABLE;
-  private $serviceType = self::ATTACHABLE;
+  private $serviceImplementation = self::ATTACHABLE;
+
+  public static function initializeNewService($type) {
+    $type_map = AlmanacServiceType::getAllServiceTypes();
+
+    $implementation = idx($type_map, $type);
+    if (!$implementation) {
+      throw new Exception(
+        pht(
+          'No Almanac service type "%s" exists!',
+          $type));
+    }
 
-  public static function initializeNewService() {
     return id(new AlmanacService())
       ->setViewPolicy(PhabricatorPolicies::POLICY_USER)
       ->setEditPolicy(PhabricatorPolicies::POLICY_ADMIN)
-      ->attachAlmanacProperties(array());
+      ->attachAlmanacProperties(array())
+      ->setServiceType($type)
+      ->attachServiceImplementation($implementation);
   }
 
   protected function getConfiguration() {
@@ -37,7 +49,7 @@
         'name' => 'text128',
         'nameIndex' => 'bytes12',
         'mailKey' => 'bytes20',
-        'serviceClass' => 'text64',
+        'serviceType' => 'text64',
       ),
       self::CONFIG_KEY_SCHEMA => array(
         'key_name' => array(
@@ -47,8 +59,8 @@
         'key_nametext' => array(
           'columns' => array('name'),
         ),
-        'key_class' => array(
-          'columns' => array('serviceClass'),
+        'key_servicetype' => array(
+          'columns' => array('serviceType'),
         ),
       ),
     ) + parent::getConfiguration();
@@ -78,22 +90,35 @@
     return $this->assertAttached($this->bindings);
   }
 
+  public function getActiveBindings() {
+    $bindings = $this->getBindings();
+
+    // Filter out disabled bindings.
+    foreach ($bindings as $key => $binding) {
+      if ($binding->getIsDisabled()) {
+        unset($bindings[$key]);
+      }
+    }
+
+    return $bindings;
+  }
+
   public function attachBindings(array $bindings) {
     $this->bindings = $bindings;
     return $this;
   }
 
-  public function getServiceType() {
-    return $this->assertAttached($this->serviceType);
+  public function getServiceImplementation() {
+    return $this->assertAttached($this->serviceImplementation);
   }
 
-  public function attachServiceType(AlmanacServiceType $type) {
-    $this->serviceType = $type;
+  public function attachServiceImplementation(AlmanacServiceType $type) {
+    $this->serviceImplementation = $type;
     return $this;
   }
 
   public function isClusterService() {
-    return $this->getServiceType()->isClusterServiceType();
+    return $this->getServiceImplementation()->isClusterServiceType();
   }
 
 
@@ -128,7 +153,7 @@
   }
 
   public function getAlmanacPropertyFieldSpecifications() {
-    return $this->getServiceType()->getFieldSpecifications();
+    return $this->getServiceImplementation()->getFieldSpecifications();
   }
 
   public function newAlmanacPropertyEditEngine() {
@@ -246,12 +271,17 @@
         ->setKey('name')
         ->setType('string')
         ->setDescription(pht('The name of the service.')),
+      id(new PhabricatorConduitSearchFieldSpecification())
+        ->setKey('serviceType')
+        ->setType('string')
+        ->setDescription(pht('The service type constant.')),
     );
   }
 
   public function getFieldValuesForConduit() {
     return array(
       'name' => $this->getName(),
+      'serviceType' => $this->getServiceType(),
     );
   }
 
diff --git a/src/applications/almanac/typeahead/AlmanacServiceDatasource.php b/src/applications/almanac/typeahead/AlmanacServiceDatasource.php
--- a/src/applications/almanac/typeahead/AlmanacServiceDatasource.php
+++ b/src/applications/almanac/typeahead/AlmanacServiceDatasource.php
@@ -28,9 +28,9 @@
     // selected, or show all services but mark the invalid ones disabled and
     // prevent their selection.
 
-    $service_classes = $this->getParameter('serviceClasses');
-    if ($service_classes) {
-      $services->withServiceClasses($service_classes);
+    $service_types = $this->getParameter('serviceTypes');
+    if ($service_types) {
+      $services->withServiceTypes($service_types);
     }
 
     $services = $this->executeQuery($services);
diff --git a/src/applications/almanac/typeahead/AlmanacServiceTypeDatasource.php b/src/applications/almanac/typeahead/AlmanacServiceTypeDatasource.php
new file mode 100644
--- /dev/null
+++ b/src/applications/almanac/typeahead/AlmanacServiceTypeDatasource.php
@@ -0,0 +1,43 @@
+<?php
+
+final class AlmanacServiceTypeDatasource
+  extends PhabricatorTypeaheadDatasource {
+
+  public function getBrowseTitle() {
+    return pht('Browse Service Types');
+  }
+
+  public function getPlaceholderText() {
+    return pht('Type a service type name...');
+  }
+
+  public function getDatasourceApplicationClass() {
+    return 'PhabricatorAlmanacApplication';
+  }
+
+  public function loadResults() {
+    $results = $this->buildResults();
+    return $this->filterResultsAgainstTokens($results);
+  }
+
+  protected function renderSpecialTokens(array $values) {
+    return $this->renderTokensFromResults($this->buildResults(), $values);
+  }
+
+  private function buildResults() {
+    $results = array();
+
+    $types = AlmanacServiceType::getAllServiceTypes();
+
+    $results = array();
+    foreach ($types as $key => $type) {
+      $results[$key] = id(new PhabricatorTypeaheadResult())
+        ->setName($type->getServiceTypeName())
+        ->setIcon($type->getServiceTypeIcon())
+        ->setPHID($key);
+    }
+
+    return $results;
+  }
+
+}
diff --git a/src/applications/config/check/PhabricatorRepositoriesSetupCheck.php b/src/applications/config/check/PhabricatorRepositoriesSetupCheck.php
--- a/src/applications/config/check/PhabricatorRepositoriesSetupCheck.php
+++ b/src/applications/config/check/PhabricatorRepositoriesSetupCheck.php
@@ -10,9 +10,9 @@
 
     $cluster_services = id(new AlmanacServiceQuery())
       ->setViewer(PhabricatorUser::getOmnipotentUser())
-      ->withServiceClasses(
+      ->withServiceTypes(
         array(
-          'AlmanacClusterRepositoryServiceType',
+          AlmanacClusterRepositoryServiceType::SERVICETYPE,
         ))
       ->setLimit(1)
       ->execute();
diff --git a/src/applications/diffusion/controller/DiffusionRepositoryCreateController.php b/src/applications/diffusion/controller/DiffusionRepositoryCreateController.php
--- a/src/applications/diffusion/controller/DiffusionRepositoryCreateController.php
+++ b/src/applications/diffusion/controller/DiffusionRepositoryCreateController.php
@@ -47,9 +47,9 @@
         // allocations, we fail.
         $services = id(new AlmanacServiceQuery())
           ->setViewer(PhabricatorUser::getOmnipotentUser())
-          ->withServiceClasses(
+          ->withServiceTypes(
             array(
-              'AlmanacClusterRepositoryServiceType',
+              AlmanacClusterRepositoryServiceType::SERVICETYPE,
             ))
           ->needProperties(true)
           ->execute();
diff --git a/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php b/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php
--- a/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php
+++ b/src/applications/drydock/blueprint/DrydockAlmanacServiceHostBlueprintImplementation.php
@@ -184,7 +184,7 @@
         'type' => 'datasource',
         'datasource.class' => 'AlmanacServiceDatasource',
         'datasource.parameters' => array(
-          'serviceClasses' => $this->getAlmanacServiceClasses(),
+          'serviceTypes' => $this->getAlmanacServiceTypes(),
         ),
         'required' => true,
       ),
@@ -213,7 +213,7 @@
       $services = id(new AlmanacServiceQuery())
         ->setViewer($viewer)
         ->withPHIDs($service_phids)
-        ->withServiceClasses($this->getAlmanacServiceClasses())
+        ->withServiceTypes($this->getAlmanacServiceTypes())
         ->needBindings(true)
         ->execute();
       $services = mpull($services, null, 'getPHID');
@@ -283,9 +283,9 @@
     return $this->freeBindings;
   }
 
-  private function getAlmanacServiceClasses() {
+  private function getAlmanacServiceTypes() {
     return array(
-      'AlmanacDrydockPoolServiceType',
+      AlmanacDrydockPoolServiceType::SERVICETYPE,
     );
   }
 
diff --git a/src/applications/repository/storage/PhabricatorRepository.php b/src/applications/repository/storage/PhabricatorRepository.php
--- a/src/applications/repository/storage/PhabricatorRepository.php
+++ b/src/applications/repository/storage/PhabricatorRepository.php
@@ -2047,7 +2047,7 @@
           'be loaded.'));
     }
 
-    $service_type = $service->getServiceType();
+    $service_type = $service->getServiceImplementation();
     if (!($service_type instanceof AlmanacClusterRepositoryServiceType)) {
       throw new Exception(
         pht(