Zach from zjembedded.blogspot.com has shared his step by step process to turn an RPi into a Pandora streamer:

I recently finished a project to turn the Raspberry Pi into a music streamer. I had seen a couple of other projects here and here that were the same basic concept, so I knew it was possible (this is nothing new…just new for me), and I wanted to try to figure it out by myself. My basic justification for the project was that I listen to a lot of music on Pandora or Spotify while reading and doing homework, but having it up on the computer means I have an instant distraction any time I feel like checking email, news, or whatever. Building a small, standalone player with just a screen to display song titles and a simple interface using a few buttons removes that temptation. I also had a couple of weeks off school between summer and fall sessions, and I wanted a quick project I could finish up before I lose all free time again.

Schematics and more here!

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Each Friday is PiDay here at Adafruit, be sure to check out our posts, tutorials and new Raspberry Pi related products. Have you tried the new “Adafruit Raspberry Pi Educational Linux Distro”? It’s our tweaked distribution for teaching electronics using the Raspberry Pi. But wait, there’s more! Try our new Raspberry Pi WebIDE! The easiest way to learn programming on a Raspberry Pi.

We now have Raspberry Pi Model B with 512MB RAM in stock and shipping now!