I would love to see two things from Google:

  * Change the logo; even just a black bar through the middle since the logo gets a lot of attention.

  * For any SOPA/PIPA supporter's site in their results, mark it in some way.  Don't block it, but indicate that this is a supporter and use that to demonstrate what SOPA/PIPA might do.  This allows people to ignore those sites if they want, but does not remove them from the index or cause any permanent harm.