SOPA Track will tell you if your elected officials have expressly stated their support or disapproval of SOPA/PIPA along with the amount of money they’ve raised from pro and anti-SOPA organizations. An office phone number and links to each Congressperson’s social media profiles are also included.
I'm not too certain about the accuracy of SOPA Track regarding their allocation of contributors to "For SOPA" or "Against SOPA." Even if it is not as accurate as we would all like it to be it is a great start and kudos to Randy Meech for the idea and taking the time to develop it.
For more see an earlier post: An Open Letter From Internet Engineers to the United States Congress and see the discussions at Slashdot.