Index: wp-includes/admin-bar.php
===================================================================
--- wp-includes/admin-bar.php	(revision 18796)
+++ wp-includes/admin-bar.php	(working copy)
@@ -181,7 +181,23 @@
 				'class' => 'user-info-item',
 			),
 		) );
+	}
+}
 
+/**
+ * Add the subsites under the "My Account" menu.
+ *
+ * @since 3.3.0
+ */
+function wp_admin_bar_my_account_subsites_menu( $wp_admin_bar ) {
+
+	global $user_identity;
+
+	$user_id      = get_current_user_id();
+	$current_user = wp_get_current_user();
+
+	if ( 0 != $user_id ) {
+
 		$wp_admin_bar->add_menu( array(
 			'parent' => 'my-account',
 			'id'     => 'my-account-secondary',
Index: wp-includes/class-wp-admin-bar.php
===================================================================
--- wp-includes/class-wp-admin-bar.php	(revision 18796)
+++ wp-includes/class-wp-admin-bar.php	(working copy)
@@ -175,6 +175,7 @@
 	function add_menus() {
 		add_action( 'admin_bar_menu', 'wp_admin_bar_wp_menu', 10 );
 		add_action( 'admin_bar_menu', 'wp_admin_bar_my_account_menu', 10 );
+		add_action( 'admin_bar_menu', 'wp_admin_bar_my_account_subsites_menu', 20 );
 		add_action( 'admin_bar_menu', 'wp_admin_bar_edit_menu', 30 );
 		add_action( 'admin_bar_menu', 'wp_admin_bar_new_content_menu', 40 );
 		add_action( 'admin_bar_menu', 'wp_admin_bar_comments_menu', 50 );