Phewwww, to be fair 30 Rock was starting to enter a decline so this lets it bow in grace (if only the Office had been ended after last season).
Parks and Rec is too damn good right now to be canned! And I don't really watch Community but I like it.
I don't know how caught up on 30 Rock you are, but I'd say this season is a decent improvement over the last two, but it's had a good run and I'm ready to see it finish strongly. I was really surprised to see Parks and Rec get a full season pickup, but damn I agree it does need to go away anytime soon. And with the Dwight Schrute spin-off, and Mindy Kaling having a show picked up by Fox, I'm not sure if the Office can continue past next season. You should totally watch Community. Such a good show.