With last.fm being bought by CBS, I stumbled onto this:http://mog.com/
The basic difference with last.fm is that you download an app, the mogg-o-matic, that scans your music collection. So mog does counts, recommendations, etc, but it has the advantage of _knowing_ what you already have.
This is actually very motivational http://mog.com/story
Looks like a company started by 3 music lovers.
The only thing that troubles me is that the site looks ultra-professional, designed to appeal. I wonder if this is not some big name in the music industry hidden in the innocent appearance of a 'new cool music site that will free us all'...
App is indexing my collection. Will post more as I know more.[edited to attach picture -- please attach pics to posts whenever possible]