I know that for the ESA, which is mostly in favor of the publishers anyway, this is just a face-saving measure. However, like all the other said measures, let's hope that it makes it too embarrassing for them to flip-flop BACK to in support of SOPA/PIPA when they invariably try to get resurrected in some shape or form.
[citation][nom]alidan[/nom]sadly no... its 51% of the senate, or the house, to pass something (i think one of those is 2/3 necessary, i forget where that plays a role)[/citation]
It takes a simple majority (50% + 1) to pass a bill in either the House or Senate.
If someone in the Senate feels strongly against a bill, (read: any partisan issue) they will Filibuster it, requiring a cloture vote to pass before the bill itself can be brought to a final vote. THIS requires a 60% vote.
The 2/3 majority is merely the required vote to over-ride a Presidential Veto. The majority must be achieved in BOTH the House and Senate; 75% in one and 65% in the other would not be sufficient.