diff --git a/addressbook/inc/class.addressbook_bo.inc.php b/addressbook/inc/class.addressbook_bo.inc.php
index 50fa34c496..b93309c649 100755
--- a/addressbook/inc/class.addressbook_bo.inc.php
+++ b/addressbook/inc/class.addressbook_bo.inc.php
@@ -1209,16 +1209,18 @@ class addressbook_bo extends addressbook_so
 		{
 			$criteria = is_array($pattern) ? $pattern['search'] : $pattern;
 		}
-		if($options['start'] || $options['num_rows']) {
+		if($options['start'] || $options['num_rows'])
+		{
 			$limit = array($options['start'], $options['num_rows']);
 		}
 		$filter = (array)$options['filter'];
 		if ($GLOBALS['egw_info']['user']['preferences']['addressbook']['hide_accounts']) $filter['account_id'] = null;
-		if (($contacts = parent::search($criteria,false,'org_name,n_family,n_given,cat_id','','%',false,'OR', $limit, $filter)))
+		if (($contacts = parent::search($criteria,false,'org_name,n_family,n_given,cat_id,contact_email','','%',false,'OR', $limit, $filter)))
 		{
 			foreach($contacts as $contact)
 			{
-				$result[$contact['id']] = $this->link_title($contact);
+				$result[$contact['id']] = $this->link_title($contact).
+					($options['type'] === 'email' ? ' <'.$contact['email'].'>' : '');
 				// show category color
 				if ($contact['cat_id'] && ($color = etemplate::cats2color($contact['cat_id'])))
 				{
@@ -1233,6 +1235,27 @@ class addressbook_bo extends addressbook_so
 		return $result;
 	}
 
+	/**
+	 * Query for subtype email (returns only contacts with email address set)
+	 *
+	 * @param string|array $pattern
+	 * @param array $options
+	 * @return Ambigous <multitype:, string, multitype:Ambigous <multitype:, string> string >
+	 */
+	function link_query_email($pattern, Array &$options = array())
+	{
+		if (isset($options['filter']) && !is_array($options['filter']))
+		{
+			$options['filter'] = (array)$options['filter'];
+		}
+		// return only contacts with email set
+		$options['filter'][] = "contact_email LIKE '%@%'";
+		
+		// let link query know, to append email to list
+		$options['type'] = 'email';
+		
+		return $this->link_query($pattern,$options);
+	}
 	/**
 	 * Check access to the projects file store
 	 *
@@ -1244,7 +1267,7 @@ class addressbook_bo extends addressbook_so
 	{
 		return $this->check_perms($check,$id);
 	}
-
+	
 	/**
 	 * returns info about contacts for calender
 	 *
diff --git a/addressbook/inc/class.addressbook_hooks.inc.php b/addressbook/inc/class.addressbook_hooks.inc.php
index 6f7aef69d3..2d9f3b45ea 100644
--- a/addressbook/inc/class.addressbook_hooks.inc.php
+++ b/addressbook/inc/class.addressbook_hooks.inc.php
@@ -323,6 +323,12 @@ class addressbook_hooks
 			'add_popup'  => '870x440',
 			'file_access'=> 'addressbook.addressbook_bo.file_access',
 			'default_types' => array('n' => array('name' => 'contact', 'options' => array('icon' => 'navbar.png','template' => 'addressbook.edit'))),
+			// registers an addtional type 'addressbook-email', returning only contacts with email, title has email appended
+			'additional' => array(
+				'addressbook-email' => array(
+					'query' => 'addressbook.addressbook_bo.link_query_email',
+				),
+			)
 		);
 	}
 
diff --git a/phpgwapi/inc/class.egw_link.inc.php b/phpgwapi/inc/class.egw_link.inc.php
index 973fda4373..88b2d54fc8 100644
--- a/phpgwapi/inc/class.egw_link.inc.php
+++ b/phpgwapi/inc/class.egw_link.inc.php
@@ -61,6 +61,11 @@
  *			),
  *			'edit_id' => 'app_id',
  *			'edit_popup' => '400x300',
+ *			'additional' => array(					// allow one app to register sub-types, 
+ *				'app-sub' => array(					// different from 'types' approach above
+ *					// every value defined above
+ *				)
+ *			)
  *	}
  * All entries are optional, thought you only get conected functionality, if you implement them ...
  *
@@ -142,6 +147,15 @@ class egw_link extends solink
 		{
 			foreach($search_link_hooks as $app => $data)
 			{
+				// allow apps to register additional types
+				if (isset($data['additional']))
+				{
+					foreach($data['additional'] as $name => $values)
+					{
+						self::$app_register[$name] = $values;
+					}
+					unset($data['additional']);
+				}
 				if (is_array($data))
 				{
 					self::$app_register[$app] = $data;