diff --git a/src/__phutil_library_map__.php b/src/__phutil_library_map__.php
index fbbd7e1a01..1812e8915a 100644
--- a/src/__phutil_library_map__.php
+++ b/src/__phutil_library_map__.php
@@ -262,6 +262,7 @@ phutil_register_library_map(array(
     'DiffusionCommitChangeTableView' => 'applications/diffusion/view/commitchangetable',
     'DiffusionCommitController' => 'applications/diffusion/controller/commit',
     'DiffusionCommitListController' => 'applications/diffusion/controller/commitlist',
+    'DiffusionContainsQuery' => 'applications/diffusion/query/contains/base',
     'DiffusionController' => 'applications/diffusion/controller/base',
     'DiffusionDiffController' => 'applications/diffusion/controller/diff',
     'DiffusionDiffQuery' => 'applications/diffusion/query/diff/base',
@@ -270,6 +271,7 @@ phutil_register_library_map(array(
     'DiffusionGitBranchQuery' => 'applications/diffusion/query/branch/git',
     'DiffusionGitBranchQueryTestCase' => 'applications/diffusion/query/branch/git/__tests__',
     'DiffusionGitBrowseQuery' => 'applications/diffusion/query/browse/git',
+    'DiffusionGitContainsQuery' => 'applications/diffusion/query/contains/git',
     'DiffusionGitDiffQuery' => 'applications/diffusion/query/diff/git',
     'DiffusionGitFileContentQuery' => 'applications/diffusion/query/filecontent/git',
     'DiffusionGitHistoryQuery' => 'applications/diffusion/query/history/git',
@@ -283,6 +285,7 @@ phutil_register_library_map(array(
     'DiffusionLastModifiedQuery' => 'applications/diffusion/query/lastmodified/base',
     'DiffusionMercurialBranchQuery' => 'applications/diffusion/query/branch/mercurial',
     'DiffusionMercurialBrowseQuery' => 'applications/diffusion/query/browse/mercurial',
+    'DiffusionMercurialContainsQuery' => 'applications/diffusion/query/contains/mercurial',
     'DiffusionMercurialDiffQuery' => 'applications/diffusion/query/diff/mercurial',
     'DiffusionMercurialFileContentQuery' => 'applications/diffusion/query/filecontent/mercurial',
     'DiffusionMercurialHistoryQuery' => 'applications/diffusion/query/history/mercurial',
@@ -294,9 +297,11 @@ phutil_register_library_map(array(
     'DiffusionPathIDQuery' => 'applications/diffusion/query/pathid/base',
     'DiffusionPathQueryTestCase' => 'applications/diffusion/query/pathid/base/__tests__',
     'DiffusionPathValidateController' => 'applications/diffusion/controller/pathvalidate',
+    'DiffusionQuery' => 'applications/diffusion/query/base',
     'DiffusionRepositoryController' => 'applications/diffusion/controller/repository',
     'DiffusionRepositoryPath' => 'applications/diffusion/data/repositorypath',
     'DiffusionRequest' => 'applications/diffusion/request/base',
+    'DiffusionSVNContainsQuery' => 'applications/diffusion/query/contains/svn',
     'DiffusionSvnBrowseQuery' => 'applications/diffusion/query/browse/svn',
     'DiffusionSvnDiffQuery' => 'applications/diffusion/query/diff/svn',
     'DiffusionSvnFileContentQuery' => 'applications/diffusion/query/filecontent/svn',
@@ -997,11 +1002,13 @@ phutil_register_library_map(array(
     'DiffusionCommitChangeTableView' => 'DiffusionView',
     'DiffusionCommitController' => 'DiffusionController',
     'DiffusionCommitListController' => 'DiffusionController',
+    'DiffusionContainsQuery' => 'DiffusionQuery',
     'DiffusionController' => 'PhabricatorController',
     'DiffusionDiffController' => 'DiffusionController',
     'DiffusionGitBranchQuery' => 'DiffusionBranchQuery',
     'DiffusionGitBranchQueryTestCase' => 'PhabricatorTestCase',
     'DiffusionGitBrowseQuery' => 'DiffusionBrowseQuery',
+    'DiffusionGitContainsQuery' => 'DiffusionContainsQuery',
     'DiffusionGitDiffQuery' => 'DiffusionDiffQuery',
     'DiffusionGitFileContentQuery' => 'DiffusionFileContentQuery',
     'DiffusionGitHistoryQuery' => 'DiffusionHistoryQuery',
@@ -1013,6 +1020,7 @@ phutil_register_library_map(array(
     'DiffusionLastModifiedController' => 'DiffusionController',
     'DiffusionMercurialBranchQuery' => 'DiffusionBranchQuery',
     'DiffusionMercurialBrowseQuery' => 'DiffusionBrowseQuery',
+    'DiffusionMercurialContainsQuery' => 'DiffusionContainsQuery',
     'DiffusionMercurialDiffQuery' => 'DiffusionDiffQuery',
     'DiffusionMercurialFileContentQuery' => 'DiffusionFileContentQuery',
     'DiffusionMercurialHistoryQuery' => 'DiffusionHistoryQuery',
@@ -1022,6 +1030,7 @@ phutil_register_library_map(array(
     'DiffusionPathQueryTestCase' => 'PhabricatorTestCase',
     'DiffusionPathValidateController' => 'DiffusionController',
     'DiffusionRepositoryController' => 'DiffusionController',
+    'DiffusionSVNContainsQuery' => 'DiffusionContainsQuery',
     'DiffusionSvnBrowseQuery' => 'DiffusionBrowseQuery',
     'DiffusionSvnDiffQuery' => 'DiffusionDiffQuery',
     'DiffusionSvnFileContentQuery' => 'DiffusionFileContentQuery',
diff --git a/src/applications/diffusion/controller/base/DiffusionController.php b/src/applications/diffusion/controller/base/DiffusionController.php
index 0d5fa73c0c..d8c55106b7 100644
--- a/src/applications/diffusion/controller/base/DiffusionController.php
+++ b/src/applications/diffusion/controller/base/DiffusionController.php
@@ -1,7 +1,7 @@
 <?php
 
 /*
- * Copyright 2011 Facebook, Inc.
+ * Copyright 2012 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -167,13 +167,13 @@ abstract class DiffusionController extends PhabricatorController {
     $callsign = $repository->getCallsign();
     $repository_name = phutil_escape_html($repository->getName()).' Repository';
 
-    $branch_name = $drequest->getBranch();
-    if ($branch_name) {
-      $repository_name .= ' ('.phutil_escape_html($branch_name).')';
+    if (empty($spec['commit'])) {
+      $branch_name = $drequest->getBranch();
+      if ($branch_name) {
+        $repository_name .= ' ('.phutil_escape_html($branch_name).')';
+      }
     }
 
-    $branch_uri = $drequest->getBranchURIComponent($drequest->getBranch());
-
     if (empty($spec['view']) && empty($spec['commit'])) {
       $crumb_list[] = $repository_name;
       return $crumb_list;
@@ -220,6 +220,7 @@ abstract class DiffusionController extends PhabricatorController {
         return $crumb_list;
     }
 
+    $branch_uri = $drequest->getBranchURIComponent($drequest->getBranch());
     $view_root_uri = "/diffusion/{$callsign}/{$view}/{$branch_uri}";
     $jump_href = $view_root_uri;
 
diff --git a/src/applications/diffusion/controller/commit/DiffusionCommitController.php b/src/applications/diffusion/controller/commit/DiffusionCommitController.php
index 3a0125d74e..5a4829612e 100644
--- a/src/applications/diffusion/controller/commit/DiffusionCommitController.php
+++ b/src/applications/diffusion/controller/commit/DiffusionCommitController.php
@@ -1,7 +1,7 @@
 <?php
 
 /*
- * Copyright 2011 Facebook, Inc.
+ * Copyright 2012 Facebook, Inc.
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -263,6 +263,18 @@ class DiffusionCommitController extends DiffusionController {
       $props['Differential Revision'] = $handles[$revision_phid]->renderLink();
     }
 
+    $request = $this->getDiffusionRequest();
+
+    $contains = DiffusionContainsQuery::newFromDiffusionRequest($request);
+    $branches = $contains->loadContainingBranches();
+
+    if ($branches) {
+      // TODO: Separate these into 'tracked' and other; link tracked branches.
+      $branches = implode(', ', array_keys($branches));
+      $branches = phutil_escape_html($branches);
+      $props['Branches'] = $branches;
+    }
+
     $rows = array();
     foreach ($props as $key => $value) {
       $rows[] =
diff --git a/src/applications/diffusion/controller/commit/__init__.php b/src/applications/diffusion/controller/commit/__init__.php
index 1462f1b18e..e74c53d5e0 100644
--- a/src/applications/diffusion/controller/commit/__init__.php
+++ b/src/applications/diffusion/controller/commit/__init__.php
@@ -10,6 +10,7 @@ phutil_require_module('phabricator', 'applications/differential/constants/change
 phutil_require_module('phabricator', 'applications/differential/view/changesetlistview');
 phutil_require_module('phabricator', 'applications/diffusion/controller/base');
 phutil_require_module('phabricator', 'applications/diffusion/data/pathchange');
+phutil_require_module('phabricator', 'applications/diffusion/query/contains/base');
 phutil_require_module('phabricator', 'applications/diffusion/query/pathchange/base');
 phutil_require_module('phabricator', 'applications/diffusion/view/commitchangetable');
 phutil_require_module('phabricator', 'applications/markup/engine');
diff --git a/src/applications/diffusion/query/base/DiffusionQuery.php b/src/applications/diffusion/query/base/DiffusionQuery.php
new file mode 100644
index 0000000000..fe3116650b
--- /dev/null
+++ b/src/applications/diffusion/query/base/DiffusionQuery.php
@@ -0,0 +1,56 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+abstract class DiffusionQuery {
+
+  private $request;
+
+  final protected function __construct() {
+    // <protected>
+  }
+
+  protected static function newQueryObject(
+    $base_class,
+    DiffusionRequest $request) {
+
+    $repository = $request->getRepository();
+
+    $map = array(
+      PhabricatorRepositoryType::REPOSITORY_TYPE_GIT        => 'Git',
+      PhabricatorRepositoryType::REPOSITORY_TYPE_MERCURIAL  => 'Mercurial',
+      PhabricatorRepositoryType::REPOSITORY_TYPE_SVN        => 'SVN',
+    );
+
+    $name = idx($map, $repository->getVersionControlSystem());
+    if (!$name) {
+      throw new Exception("Unsupported VCS!");
+    }
+
+    $class = str_replace('Diffusion', 'Diffusion'.$name, $base_class);
+    $obj = new $class();
+    $obj->request = $request;
+
+    return $obj;
+  }
+
+  final protected function getRequest() {
+    return $this->request;
+  }
+
+  abstract protected function executeQuery();
+}
diff --git a/src/applications/diffusion/query/base/__init__.php b/src/applications/diffusion/query/base/__init__.php
new file mode 100644
index 0000000000..96c180b523
--- /dev/null
+++ b/src/applications/diffusion/query/base/__init__.php
@@ -0,0 +1,14 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/repository/constants/repositorytype');
+
+phutil_require_module('phutil', 'utils');
+
+
+phutil_require_source('DiffusionQuery.php');
diff --git a/src/applications/diffusion/query/contains/base/DiffusionContainsQuery.php b/src/applications/diffusion/query/contains/base/DiffusionContainsQuery.php
new file mode 100644
index 0000000000..a933a192ef
--- /dev/null
+++ b/src/applications/diffusion/query/contains/base/DiffusionContainsQuery.php
@@ -0,0 +1,30 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+abstract class DiffusionContainsQuery extends DiffusionQuery {
+
+  final public static function newFromDiffusionRequest(
+    DiffusionRequest $request) {
+    return self::newQueryObject(__CLASS__, $request);
+  }
+
+  final public function loadContainingBranches() {
+    return $this->executeQuery();
+  }
+
+}
diff --git a/src/applications/diffusion/query/contains/base/__init__.php b/src/applications/diffusion/query/contains/base/__init__.php
new file mode 100644
index 0000000000..879029fe29
--- /dev/null
+++ b/src/applications/diffusion/query/contains/base/__init__.php
@@ -0,0 +1,12 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/diffusion/query/base');
+
+
+phutil_require_source('DiffusionContainsQuery.php');
diff --git a/src/applications/diffusion/query/contains/git/DiffusionGitContainsQuery.php b/src/applications/diffusion/query/contains/git/DiffusionGitContainsQuery.php
new file mode 100644
index 0000000000..96f31f12e7
--- /dev/null
+++ b/src/applications/diffusion/query/contains/git/DiffusionGitContainsQuery.php
@@ -0,0 +1,34 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class DiffusionGitContainsQuery extends DiffusionContainsQuery {
+
+  final public function executeQuery() {
+    $request = $this->getRequest();
+    $repository = $request->getRepository();
+
+    list($contains) = $repository->execxLocalCommand(
+      'branch -r --verbose --no-abbrev --contains %s',
+      $request->getCommit());
+
+    return DiffusionGitBranchQuery::parseGitRemoteBranchOutput(
+      $contains,
+      DiffusionBranchInformation::DEFAULT_GIT_REMOTE);
+  }
+
+}
diff --git a/src/applications/diffusion/query/contains/git/__init__.php b/src/applications/diffusion/query/contains/git/__init__.php
new file mode 100644
index 0000000000..9c670e2074
--- /dev/null
+++ b/src/applications/diffusion/query/contains/git/__init__.php
@@ -0,0 +1,14 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/diffusion/data/branch');
+phutil_require_module('phabricator', 'applications/diffusion/query/branch/git');
+phutil_require_module('phabricator', 'applications/diffusion/query/contains/base');
+
+
+phutil_require_source('DiffusionGitContainsQuery.php');
diff --git a/src/applications/diffusion/query/contains/mercurial/DiffusionMercurialContainsQuery.php b/src/applications/diffusion/query/contains/mercurial/DiffusionMercurialContainsQuery.php
new file mode 100644
index 0000000000..98b8bae3df
--- /dev/null
+++ b/src/applications/diffusion/query/contains/mercurial/DiffusionMercurialContainsQuery.php
@@ -0,0 +1,28 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class DiffusionMercurialContainsQuery extends DiffusionContainsQuery {
+
+  protected function executeQuery() {
+
+    // TODO: Implement this.
+
+    return array();
+  }
+
+}
diff --git a/src/applications/diffusion/query/contains/mercurial/__init__.php b/src/applications/diffusion/query/contains/mercurial/__init__.php
new file mode 100644
index 0000000000..22a9d916a5
--- /dev/null
+++ b/src/applications/diffusion/query/contains/mercurial/__init__.php
@@ -0,0 +1,12 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/diffusion/query/contains/base');
+
+
+phutil_require_source('DiffusionMercurialContainsQuery.php');
diff --git a/src/applications/diffusion/query/contains/svn/DiffusionSVNContainsQuery.php b/src/applications/diffusion/query/contains/svn/DiffusionSVNContainsQuery.php
new file mode 100644
index 0000000000..6766a96922
--- /dev/null
+++ b/src/applications/diffusion/query/contains/svn/DiffusionSVNContainsQuery.php
@@ -0,0 +1,26 @@
+<?php
+
+/*
+ * Copyright 2012 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class DiffusionSVNContainsQuery extends DiffusionContainsQuery {
+
+  protected function executeQuery() {
+    // NOTE: Subversion doesn't have branches, so we always return empty.
+    return array();
+  }
+
+}
diff --git a/src/applications/diffusion/query/contains/svn/__init__.php b/src/applications/diffusion/query/contains/svn/__init__.php
new file mode 100644
index 0000000000..0ff4d98302
--- /dev/null
+++ b/src/applications/diffusion/query/contains/svn/__init__.php
@@ -0,0 +1,12 @@
+<?php
+/**
+ * This file is automatically generated. Lint this module to rebuild it.
+ * @generated
+ */
+
+
+
+phutil_require_module('phabricator', 'applications/diffusion/query/contains/base');
+
+
+phutil_require_source('DiffusionSVNContainsQuery.php');