Here's a twitpic of what the suspended websites look like: http://twitpic.com/9e0166/full.
This is significant. Although hacktivism has gotten a ton of attention in recent months, for-profit hacking continues at a costly rate and taking these sites offline is a serious blow.
Interestingly, law enforcement seems to be conducting arrests in batches--arresting or suspending criminal gangs as a network vs individually. Just as all of Lulzsec was arrested, now a network of carder sites is paralyzed. And this approach makes sense since it can help eliminate a swath of criminal activity while potentially scaring others from filling the void.