Moments after Wikileaks supporters gave an attack order, credit card network Visa just saw its website taken offline., meanwhile, also remains down.

This means the two biggest credit card networks in America were successfully attacked by angry 4-Chan-ers using automated software distributed via Twitter. It's a matter of dispute how far the attacks can spread beyond the credit card networks' websites, but the subtext of how easily Visa and MasterCard got spanked by hackers is at least as big a message here as the overt one about punishing financial companies who cut off Wikileaks.