unsure with coordinated board

[JojoDiego]

Villain's approximate numbers: 60/0/.1

Not sure if I shoulda bet out on flop or checked to see the action. Not sure if I shoulda kept firing on turn, river when no one came back at me and the board got worse. Other opponents were in the 30-40 VP$IP range, not as passive, except for 1 unknown guy. I figured I might be ahead and had a pretty good draw, but still felt a little lost throughout.

Paradise Poker 2/4 Hold'em (10 handed) FTR converter on zerodivide.cx

Preflop: Hero is SB with J[img]/images/graemlins/heart.gif[/img], K[img]/images/graemlins/spade.gif[/img].
2 folds</font>, UTG+2 calls, 1 fold</font>, MP2 calls, 3 folds</font>, Hero completes, BB checks.

Flop: (4 SB) 9[img]/images/graemlins/diamond.gif[/img], J[img]/images/graemlins/diamond.gif[/img], Q[img]/images/graemlins/club.gif[/img] (4 players)</font>
Hero bets</font>, BB calls, UTG+2 calls, MP2 calls.

Turn: (4 BB) 8[img]/images/graemlins/club.gif[/img] (4 players)</font>
Hero bets</font>, BB folds, UTG+2 calls, MP2 folds.

River: (6 BB) 9[img]/images/graemlins/heart.gif[/img] (2 players)</font>
Hero bets</font>, UTG+2 calls.

Final Pot: 8 BB