If you don't know, there is an amazing service from Music Genome Project called Pandora. It plays music based on your personal taste. Just pick some songs or artists and enjoy new music similar to your selection.
I’m using Pandora daily and I like it so much, that I created a small application for playing Pandora in a more convenient way. Some of my friends are already using it, others asked me to send it to them. But instead of sending the application I decided to share it with everyone.
I called the application Open Pandora, and in a matter of days I'll post a link to it.
For now you can check the music I'm listening to: http://www.pandora.com/?sc=sh10079569.