re: Poker & $10NL, AA, bet the turn?
I think you definitely have to bet. The board is relatively safe for a hand like yours, rainbow, no straight possibilities yet. I'd bet pot at least here, to make them think seriously about any straight draw they may be chasing. Unless the SB is cleverly slow-playing a set by check calling to you, you should be in front. I think if the SB had of flopped a set he would most likely have check-raised on the flop, given there was two 90c callers.
Again it's hard not knowing what these people play like? Would either of these two be likely to be slow playing a set? MP could have a draw like J,10 or something, or even better top pair. The other thing, playing at micro limits like this there's a lot of people that like to play 6,9.. probably cause they've never had a root and they pretend it's their favourite hand. When I played at micro limits this was always in the back of my mind when 6,9 hit the board!! But still, apart from that, being up against two pair is very unlikely.
Anyway, I think you have to assume you're in front here and bet pot. Don't give them the odds
to suck out.