During that time we should compile a list of all representatives that support this bill and any/all donations and from whom those donations came from to support this bill. When the money trail is out in the open, I think both the representatives and the donors may be more timid about pushing forward against an unpopular bill like this.
There is another mechanism used to incentivize support for ill-conceived policies: promises of cushy, high-pay lobbying jobs for officials and members of their staff.
I imagine this would only be uncovered ex-post facto. Here's a nauseating example:
They're a very careful organization, so they're very cautious in stating a congressperson's vote before the actual vote. But it's a start. The contribution ratio for my representative definitely prompted me to call her today.
It's not quite what you're asking for, but OpenCongress.org seems to have a pretty relevant list of the money various reps have received from groups supporting and opposing the bill: http://www.opencongress.org/bill/112-h3261/money
sopahitlist.com is available. Perhaps it's too violent sounding, so better ideas are welcome.
It'd be a list of SOPA supporters in Congress, and encouragement for their constituents to call in and say something, and/or vote for the other guy at the next election.
People, your domain ideas are excellent but instead of posting them here for all squatters to take, please just register the darn domains. It's only couple of bucks after all.