Topic: Online music collection databases?

[Tim]

Anyone using any of these places like rateyourmusic.com, discogs.com or analogapartment.com?

I signed up at analogapartment and discogs. It looks like the discogs db is a little better developed but I'm already finding holes in the discogs db as well. In the last few minutes these 3 have all popped up as missing: Norman Blake - Blackberry Blossom vinyl, a Blue Note Three Sounds Album, and now King Curtis Live at Fillmore West french Atlantic release.

None of these is a particularly rare or obscure record. I don't mind adding to the db's at these sites but does anyone have a feel for which has the most well developed db?

I'm wondering too if one site isn't better for jazz, another for americana/folk music etc.