diff --git a/inc/interactive-page.php b/inc/interactive-page.php
index 281318b3..bee042f3 100644
--- a/inc/interactive-page.php
+++ b/inc/interactive-page.php
@@ -27,6 +27,7 @@ $user_menu->AddOption(translate('View My Details'),$c->base_url.'/admin.php?acti
 $user_menu->AddOption(translate('List Users'),$c->base_url.'/admin.php?action=browse&t=principal&type=1');
 $user_menu->AddOption(translate('List Resources'),$c->base_url.'/admin.php?action=browse&t=principal&type=2');
 $user_menu->AddOption(translate('List Groups'),$c->base_url.'/admin.php?action=browse&t=principal&type=3');
+$user_menu->AddOption(translate('List External Calendars'),$c->base_url.'/admin.php?action=browse&t=external');
 
 $admin_menu = new MenuSet('submenu', 'submenu', 'submenu_active');
 if ( $session->AllowedTo('Admin' )) {
diff --git a/inc/ui/external-browse.php b/inc/ui/external-browse.php
new file mode 100644
index 00000000..72a847ef
--- /dev/null
+++ b/inc/ui/external-browse.php
@@ -0,0 +1,28 @@
+<?php
+param_to_global( 'external_active', '([tf])', 'active' );
+
+$browser = new Browser(translate('External Calendars'));
+
+$browser->AddColumn( 'collection_id', translate('ID'), 'right', '##collection_link##' );
+$rowurl = $c->base_url . '/admin.php?action=edit&t=external&id=';
+$browser->AddHidden( 'collection_link', "'<a href=\"$rowurl' || collection_id || '\">' || collection_id || '</a>'" );
+$browser->AddColumn( 'dav_displayname', translate('Display Name') );
+$browser->AddColumn( 'refs', translate('References'),'right','','(select count(*) from dav_binding where bound_source_id=collection_id )' );
+
+$browser->SetOrdering( 'dav_displayname', 'A' );
+$browser->SetJoins( "collection " );
+
+$browser->SetWhere( "parent_container='/.external/'" );
+
+
+$c->page_title = $browser->Title();
+
+if ( $c->enable_row_linking ) {
+  $browser->RowFormat( '<tr onMouseover="LinkHref(this,1);" title="'.htmlspecialchars(translate('Click to display user details')).'" class="r%d">', '</tr>', '#even' );
+}
+else {
+  $browser->RowFormat( '<tr class="r%d">', '</tr>', '#even' );
+}
+
+$page_elements[] = $browser;
+