Songbird, a free skinable media player capable of playing all types of music formats has recently been released. It comes with links to stores like eMusic and mp3Tunes, as well as various blogs and mp3 aggregators. Think of Songbird has a combination of music player and web browser.
The current release is just a “proof-of-concept” version, a sign of things to come. Thus, it is only available for Windows at the moment (Linux and Mac OSX versions to come). In addition, there are a lot of features, such as cross fading and CD import and burn, that are not present. One of the things that makes Songbird exciting, though, is that it has been built off of Mozilla Firefox and was created using XUL allowing Songbird to work with third party extensions. This is a good sign for future flexibility and features.
While Songbird is not ready for prime time, I am looking forward to seeing what how Songbird develops. The first version has a tendency to crash occasionally and lacks many of the more advanced features of an iTunes or other compeititors. Songbird may very well be a sign of things to come, a “web browser for music”.