Anonymous recently
released a YouTube video threatening Sony for supporting SOPA. They have since clarified that if this attack were to take place, it would be focused on Sony Executives and not the PlayStation Network.
Apparently, there were those among the hacker group who wanted to attack the PlayStation Network, but they concluded that they would not attack PSN. The plan now seems to be to post personal information about Sony executuives online, deface Sony's website with anti-SOPA propaganda, and make copywritten Sony media available for free from links on Sony's assorted websites.
Since the threat was brought up,
Sony has scaled back its support of SOPA, which may have been a result of Anonymous' threat, and it could also be enough for Anonymous to drop the whole thing.
source:
http://www.tortuga-cove.com