Project Playlist was built to do one thing--stream audio playlists using music found freely online--and it does that fairly well. A cool feature on the Project Playlist site called "music buzz" offers up a range of blog posts about new music that has been culled from around the Web. All of the songs listed on Project Playlist have two prominent buttons: one for playing the track, and another for adding it to your playlist.
Every playlist in Project Playlist lives on its own Web page, with a variety of tools for listening to it or publishing. Four big buttons directly below your playlist let you listen in Windows Media Player, Real Player, or a standalone Flash player, or subscribe to the playlist as a podcast.
Project Playlist got into hot water in 2008 after multiple lawsuits, which resulted in a block of its widgets on both MySpace and Facebook. However, it's been on the offensive about signing labels and weeding out unauthorized user content from its servers.