Interestingly enough, the strongly liberal 4chan/anonymous is against this as well. Though the general opinion there is that this is an attempt by those dastardly republicans with their big-business cronies to take over the internet, and that Obama will veto it if it makes it to his desk.
This may be a red herring on their part or they may sincerely believe that's whats going on, but don't believe for a second they know what they're talking about. It's bad for individual rights, and there's truly bad "special interest" money that wants it, therefore Obama will probably rush down to Congress to sign it when it passes, not being able to wait till his copy makes it to the White Hut.
They aren't "liberal", strongly or otherwise -- they throw bombs in every direction, depending on what target came into their sights most recently.