Webjay, the playlist sharing community purhased by Yahoo in January, 2006, will be closing its doors in June 2007. The announcement on WebJay’s web site encourages users to backup their playlists before going offline. While personally I was never a big fan of the service, I give them lots of credit for pushing XSPF as a playlist standard. The service has always raised some thorny legal issues but no reason was given for its closure. Perhaps Yahoo is looking to integrate better playlist functionality into their own Y! Music products.