X-Mas comes early for me

Thanks to the Gods of Rock out there in the heavens, some genius invented a free and innovative personalized online jukebox. The site is called Pandora, and as you search through their library and find the songs you like, this site breaks down the songs by sound, genre, instrumental style, etc. and, at your request, creates a customized radio station. It's very informative, and ridiculously easy to use.
There are a lot of sites out there like this (LastFm, Imeem, etc) but this one is the best

Pandora = my new best online friend.

Don't take my word for it, try it yourself
Click here for Pandora

Sample of Pandora: