A turned two pair out of position
 

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Party Poker 3/6 Hold'em (10 handed) converter

Preflop: Hero is BB with 9[img]/images/graemlins/heart.gif[/img], A[img]/images/graemlins/diamond.gif[/img]. CO posts a blind of $3.
<font color="#666666">6 folds</font>, CO (poster) checks, Button calls, <font color="#666666">1 fold</font>, Hero checks.

Should I have raised?

Flop: (3.33 SB) 3[img]/images/graemlins/club.gif[/img], 9[img]/images/graemlins/spade.gif[/img], Q[img]/images/graemlins/heart.gif[/img] <font color="#0000FF">(3 players)</font>
<font color="#CC3333">Hero bets</font>, CO folds, Button calls.

Turn: (2.66 BB) A[img]/images/graemlins/club.gif[/img] <font color="#0000FF">(2 players)</font>
<font color="#CC3333">Hero bets</font>, <font color="#CC3333">Button raises</font>, <font color="#CC3333">Hero 3-bets</font>, <font color="#CC3333">Button caps</font>, Hero calls.

River: (10.66 BB) 2[img]/images/graemlins/diamond.gif[/img] <font color="#0000FF">(2 players)</font>
Hero checks, <font color="#CC3333">Button bets</font>, Hero calls.

Final Pot: 12.66 BB

Standard? Does anyone fold or not 3-bet the turn?

Re: A turned two pair out of position
 

Definitely don't fold the turn.

Against an unknown I play it exactly the same.