I just added my personal radio station to The Dark Stuff. It's the silver thing at the top right of the page. Click the play button and you can listen to my station from Last.fm. I don't personally pick the songs that play, but the station is based on what I have played over the last year or so when I started having Last.fm keep track.
If you listen to music on your computer, you should look into Last.fm. All you need to do is install a plug-in to your media player and it automatically keeps track of what you play, and creates a web page to display the results. After you have used it for a while, it begins to recommend artists you might like based on your taste, and it gives you "neighbors" who have similar taste to your own. My page is here.
Anyhow, give the station a listen. I tested it out, and it actually works quite well. Unlike a regular radio station, if you don't like a song, you can skip to another one.