It's amazing that you actually got a check-raise to work here on the flop. Most of the time it will be checked around, as this flop figures to belp noone. You must bet in order to thin out the overcards to this flop that you are likely against (and ahead of). Any decent player will take a free card here if he does not hold a pair; this is not what you want. Bet and make your opponents make a decision. Bad players do not lay hands down. A check raise here does not figure to thin the field at all. Thinning the field should be your goal at this point, the only play that has a reasonable chance of accomplishing this is a simple bet.