I dump it on the turn. Even though you have position, there are too many cards you'd probably have to fade even if your 99 are still the best hand. A Q-10 board is one that connects with too many hands that your opponents might call with. In fact, I seriously think you would be better off checking that flop in the long run when you are called by three players. If it gets checked around on the flop and the turn card is safe, then you can start thinking about protecting those 99's. There is a big misconception that the pre-flop raiser HAS to bet the flop. Why? The flop sucked, and if you are beat nobody is going anywhere!
daniel-i agree that this is a check behind/bet checked turn situation in a 3-way pot against the blinds, but my question to you is this: is there a decent way of codifying these sorts of situations into anything that resembles a chart? i'm sure i'm losing bets due to improper continuation bets in situations like these.for instance:say we have 88 here, make the same raise, the blinds call, and the flop comes Q9x. since we now have a flop with only one broadway card and a much more difficult draw, i am much more inclined to bet this flop than the one in the OP. is this thinking correct? my thoughts on this have always been something like:heads up, always continuation bet.3-way, continuation bet if 1 or 0 broadway cards fall, check otherwise.4-way or more, i have to somehow hit the flop to bet.of course, there's a bit of nuance here, since AK likes flops like Q9x and QTx much more (er, dislikes them less) than 88, but still, i generally stick to the rule above with only a few exceptions based on player tendencies and position. does this sound ok to you?