[rvb]

PROTECT IP already has 41 sponsors out of the 100 members of Senate:

http://thomas.loc.gov/cgi-bin/bdquery/z?d112:SN00968:@@@P

The facts that almost half of Senators are sponsors and that they represent whole states would make a spatial visualization less helpful, I think.

I figured this particular format would be more effective to highlight the small minority (32/435) of House members sponsoring SOPA. So I started there.

You're absolutely right that PROTECT IP deserves just as much attention, though. I will get to work as soon as I can on compiling a table of the PROTECT IP sponsors' contact info.