If you want to listen to your favorite music on any computer, either you carry your MP3 around in an external drive or you can use a streaming music service like blueTunes.
blueTunes lets you upload your favorite songs to an online server – with up to a 1 GB of free storage per user – and then listen to them from any computer, as long as it's connected to the Internet.
The blueTunes player is really small and doesn't require installation, so you can take it anywhere with you in a USB memory stick. It displays album art, supports shuffle mode and shared playlists, and features an internal search for your music collection.
While the idea behind blueTunes is actually interesting, the program itself still needs a bit of development. It doesn't let you upload songs – you have to do it via a web browsers – and plus, it crashed a couple of times during our tests.
With blueTunes you can enjoy your favorite music on any computer without having to carry your MP3 collection everywhere.