.... also exitahead has a rss feed of music on ebay matching a lastfm profile so it has new music as well as older, hard to find, releases.

I think it is a healthy sign that lastfm have such a broad community of third party developers, but some of these add-ons really should be core features of their service by now. They seem to have been focused on trying to be social networking, neglecting their users that just want to find music.