Since I'm always so excited to find the latest music sites on the internet, I will share my latest and most favorite discovery in a long time: Blip.FM. Blip is sort of like a Twitter for songs. It allows you to post a song, along with a short message about the track. You can subscribe to other user's feeds, just like Twitter, creating a sort of radio station of songs that you and your friends have selected. The greatest feature is that you can simply search for the songs on Blip's database: you don't actually need to upload the songs yourself. So, this also makes the site a great way to preview music before you go out and make a purchase! I'm addicted!