Pandora is putting to work what it knows about all of those songs you've thumbed up over the years. Today it's launching Thumbprint Radio, a "hyper-personalized" station that's based entirely on the songs you've liked. "This is a living, breathing station that will continue to change as you listen," the company said. "Each time you thumb up a track on Pandora, your station will update and evolve." The station is a mix of songs you already know and new tunes that Pandora thinks you might dig. Yes, it's pretty much another spin on Spotify's wildly success Discover Weekly feature, but it's hard to blame Spotify for going this route.