Wikipedia's decision - along with other websites - to close down Wednesday seems to have had an impact on Congress.
The Hill reports that support for the bills crumbled, with Senate Republicans leading the charge.
PC World details the following results:
-4.5 million people signed Google's anti-SOPA/PIPA petition, according to the Los Angeles Times
-25 Senators now oppose PIPA (the Senate version of SOPA), according to OpenCongress
-Twitter saw more than 2.4 million SOPA-related tweets between midnight and 4 p.m. Eastern on Wednesday
-Two SOPA co-sponsors and several others dropped support for the House bill
-More than 162 million people saw Wikipedia's protest page
-More than 8 million people used Wikipedia's search tool to look up their elected representatives' contact information
-News Corp. Chairman and CEO Rupert Murdoch accused "the blogosphere" of "terrorizing many senators and congressmen who previously committed" to SOPA and PIPA.
-Conservative publication The National Review called on Congress to dump SOPA
Here's a nice graphic showing who changed positions on the bill.