TWITTER asks you: “What are you doing?” Blip, however, not only allows you to microblog, but also asks: “What are you listening to?”

You can let people know which music you’re listening to at the moment by searching for the MP3 on the site, and then blipping it, which automatically includes the song in your update. Other users can then click on your blip to play the song, and if they like it, they can then buy the song on Amazon.com. You can check out the profile I created.
It’s an interesting service which is still in beta. Blip is actually part of Fuzz.com, which aims to help music lovers keep track of their favorite bands and share music with their friends, while allowing artists to promote their music. You can upload songs you’ve purchased to your music library or choose from Fuzz’s playlists, create mixtapes, blog, add photos, list events, and write local news.
Check out Blip if you love music, and see if it’s a good alternative while Twitter is still erratic
Stumbled upon this site via Mashable.