Today is friday, and today AccuRadio has said that they will donate a percentage of Friday's Revenue to charity today. The percentage that they donate will be based on the increase in listeners they have today. So go listen!
I personally like AccuBroadway, (I know, I know) but they also have jazz, and rock stations and some electronica stations. Mostly commercial free, and you can skip songs you don't like. Check it out and do something good for charity.