I discovered Audioscrobbler through amaroK, an amazing media player/manager for KDE. The concept is simple but brilliantly executed – not only do I get a music profile of my own musical tastes, but I also have that profile cross-referenced with thousands of others users, providing a lot of new bands to listen to. But amaroK goes further in its use of Audioscrobbler's services: it can fetch information on similar bands from the site, and automatically queue them for you on your playlist (if you have them locally, of course). If you have a huge music collection such as I do…