Blip.fm is a music recommendation and streaming site. Users post short messages on what music they are listening to at the moment, the site then turns them into streaming links using Imeem.
Blip is essentially “Twitter for Music.” It allows you to suggest music and share your thoughts about it with a network of contacts.
No file uploads are necessary. Just search for the song you have in mind and Blip will grab it from Imeem. Your followers (“listeners”) can hear full versions of the songs you post using Imeem’s player widget.