according to http://apiblog.youtube.com/2010/10/pubsubhubbub-for-youtube-activities.html
*Update (February 2012): We're happy to report that PubSubHubbub functionality for YouTube feeds has been restored for the uploads, subscriptions, and favorites feed. When subscribing to a feed URL, be sure that the only URL parameter you include is v=2, e.g. ** http://gdata.youtube.com/feeds/api/users/GoogleDevelopers/uploads?v=2*<http://gdata.youtube.com/feeds/api/users/GoogleDevelopers/uploads?v=2> Can anyone confirm that Youtube service is pinging hubs ? thanks in advance - brian
