Last.fm

One of these days I'm going to investigate Last.fm -- a music site that I stumbled on yesterday. On my first, quick, visit, I was able to listen to:

• Andras Schiff playing Kreislieriana (sp?),
• Christopher Parkening playing Sor's Variations on a Theme of Mozart,
  
• Sarah Vaughan singing Summertime, and maybe best of all,
• Jo Stafford singing No Other Love.

All for free, and all without so much as registering or installing any software.

I think that registering would allow me to build and save playlists.