Facebook (and also Microsoft, Verizon, AT&T, Intel...) has come out in support of CISPA -- SOPA's evil twin that essentially would obliterate online privacy -- and the wrath of the web has reached a fever pitch.
What's the best way to fight back?
Sign the petition by Demand Progress:
"Internet users were able to push GoDaddy to withdraw its support of SOPA. Now it's time to make sure Facebook knows we're furious."
And/or share your opposition on Facebook, natch.