diff --git a/EVENTS.txt b/EVENTS.txt
index 47c67512ac..2da6f3da61 100644
--- a/EVENTS.txt
+++ b/EVENTS.txt
@@ -778,6 +778,12 @@ StartShowSubscriptionsContent: before showing the subscriptions content
 EndShowSubscriptionsContent: after showing the subscriptions content
 - $action: the current action
 
+StartShowUserGroupsContent: before showing the user groups content
+- $action: the current action
+
+EndShowUserGroupsContent: after showing the user groups content
+- $action: the current action
+
 StartShowAllContent: before showing the all (you and friends) content
 - $action: the current action
 
diff --git a/actions/usergroups.php b/actions/usergroups.php
index 97faabae65..29bda0a765 100644
--- a/actions/usergroups.php
+++ b/actions/usergroups.php
@@ -130,22 +130,26 @@ class UsergroupsAction extends OwnerDesignAction
                        _('Search for more groups'));
         $this->elementEnd('p');
 
-        $offset = ($this->page-1) * GROUPS_PER_PAGE;
-        $limit =  GROUPS_PER_PAGE + 1;
+        if (Event::handle('StartShowUserGroupsContent', array($this))) {
+            $offset = ($this->page-1) * GROUPS_PER_PAGE;
+            $limit =  GROUPS_PER_PAGE + 1;
 
-        $groups = $this->user->getGroups($offset, $limit);
+            $groups = $this->user->getGroups($offset, $limit);
 
-        if ($groups) {
-            $gl = new GroupList($groups, $this->user, $this);
-            $cnt = $gl->show();
-            if (0 == $cnt) {
-                $this->showEmptyListMessage();
+            if ($groups) {
+                $gl = new GroupList($groups, $this->user, $this);
+                $cnt = $gl->show();
+                if (0 == $cnt) {
+                    $this->showEmptyListMessage();
+                }
             }
-        }
 
-        $this->pagination($this->page > 1, $cnt > GROUPS_PER_PAGE,
-                          $this->page, 'usergroups',
-                          array('nickname' => $this->user->nickname));
+            $this->pagination($this->page > 1, $cnt > GROUPS_PER_PAGE,
+                              $this->page, 'usergroups',
+                              array('nickname' => $this->user->nickname));
+
+            Event::handle('EndShowUserGroupsContent', array($this));
+        }
     }
 
     function showEmptyListMessage()