There is a new version of our music recommender system out: inDiscover. I actually did not play any role in the new release, but I must say this is a good revision of the site. I only regret the huge and annoying ads.
The music content is good and free. The rating system is easy to use and the recommender works.
If I’m not mistaken they went from LAMP (Linux, Apache, MySQL, PHP) to C# and SQL Server. I think also that the site uses AJAX, and many limitations of the previous site were lifted,
but alas, it looks like support for RSS feeds has gone out the window (Update: RSS feeds are still very much there).
My congratulations to Sean and the whole team.