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I listen to Bloomberg radio[1] most days at work. Lots of insightful interviews and analysis of business, economics, politics, and current events. [1] http://tunein.com/tuner/?StationId=17075& ;
The improve lives through startups meme is a valuable idea, but finding tunein.com has improved my life in a small but delightful way.
I like radio because it is random and unexpected - to me. I don't have to set a playlist of any sort or even own the rights to play the song.
I used to listen to Pandora mainly for that randomly played music. I rarely even vote on Pandora and hate when it asks me to. Now that Pandora has listening caps, I barely use it.
A guy at worked pointed me to tune-in, and it is now my site of choice for online music/radio/whatever.