Free music from meemix

I enjoy listening to different genre of music, whether it is pop, rap, percussion, etc, but there are so many and I don't exactly know which artist to look for. Most of the time, friends of mine would recommend me some songs or once in a while a good song can be found in some video clip on Youtube or on television.
Today I found a website called: www.meemix.com and it's main purpose is to give you a taste of various songs from various artist, genre or even time lapse. You can create different channels and listen to different kind of music depending on your moods. You have to register after playing some songs, but the process is painless and pretty quick.
Apparently, meemix is not the first of its kind and there are a lot of web radio all over the Internet for us to discover. Below is a list of some good ones:

• Last.fm
• Seeqpod
• Imeem
• IODA Promonet
• Hypster
• Streampad
• Splashcast
• Project Playlist
• FineTune
• MyFlashFetish

Also some website like Last.fm let you embedded your stations easily into your blog.
Enjoy everyone!