From Discogs.com (http://www.discogs.com/):

a community-built database of music information. Imagine a site with discographies of all labels, all artists, all cross-referenced. It's getting closer every day

I'm finding it mighty useful for my 500+ collection of vinyl. It leans more towards electronic and dance, but there's still thousands of rock, funk, soul, hip-hop, jazz, classical, etc. You can either find an existing entry for your particular album, or enter your own. There are dozens of data types used, and it is completely relational, although a bit buggy at times. You can also output your collection as a spreadsheet too.

And if you already use a another database online that you're finding useful, let's discuss...

yes, i use discogs. i'm into electronic and experimental music, though. i use rateyourmusic for other types of music. both have their advantages.

just woke up, so i don't have all that much to say, but have you noticed almost every electronic release/artist is tagged as 'reggae/hip-hop'?

lol, yeah I noticed that too. I'll be sure to check out rateyourmusic.

I have used Discogs to find info on albums, but I use CATraxx (http://www.fnprg.com/)keep track of my albums and cd's

Second the Catraxx. Been using it awhile.

cool, thanks... I'll investigate!

In case anyone is interested, I've managed to document about half my collection at this point.

View my Discogs collection here... (http://www.discogs.com/collection?user=mr.spatial&sort=artist%2Casc)

By the way, having the ability to export my collection (as XML or CSV files) is really nice. I can input all of the info I want, export everything, convert it to an Access database, then include additional grading and condition info to it. And it's all free too, unlike Catraxx.