As promised before here is the Pingback support for PmWiki: Cookbook/Pingback. It supports receiving and sending of Pingback request, now even much more elegantly by using an “pingback” action. So no logic needed anymore to map your page urls back to pagenames, thanks to Crisses for her reference to the xmlrpc recipe which gave me the idea. Just include the recipe into your config.php, that’s it. Couldn’t be easier.