I got an email from pandora about this about a couple of weeks ago asking to contact my Congressperson to Help Save Net Radio and I did (along with more than 200.000 people)
Now there is a bill called the "Internet Radio Equality Act, H.R. 2060" to help saving internet radio... I did my call friday and it took me 5 mins.
PLEASE CALL YOUR REPRESENTATIVE TO HELP SAVING THE INTERNET RADIO.