Here's where you can find the music information database for the fear of .Z.E.R.O. and LlamaJuice projects. This site is maintained by the orange squid.
All the fun stuff is located in a wiki.
Note to potential trolls: all changes are logged and inappropriate modifications will simply be rolled back to their original state. If frequent abuse appears, anonymous users will be restricted to read-only access---sorry.
Update: Trolls have not been a problem, but spambots have been. You'll have to enter the spam safeword 'potato' (without the quotes, of course) when making edits.
Here's a list of all the pages in the wiki: