Recognizing bluffing situations

[Baseballer02]

Just wondering what situations come up where you pretty much know it would be a good time to bluff. Is it when a tight preflop raiser pots it preflop and the board comes all high or is paired on the flop, or is it when the 3-flush comes on the turn and you're holding the ace? After this hand I'm just wondering what sort of situations you guys like to bluff in. Do you believe this hand was a good time to bluff?

Edit: Villain was about 5 seconds from timing out before finally betting, which I took as weakness.

***** Hand History for Game 2816985503 *****
$200 PL Omaha Hi/Lo - Monday, October 03, 03:49:10 EDT 2005
Table Table 55027 (No DP) (Real Money)
Seat 9 is the button
Total number of players : 10
Seat 2: FourFives99 ( $293.02 )
Seat 3: atcdave ( $217.42 )
Seat 6: MomoTheDog ( $195.90 )
Seat 7: ismellgood ( $273.08 )
Seat 8: craznraizin ( $212.43 )
Seat 9: nutnutmaker ( $272.68 )
Seat 10: nikii ( $440.93 )
Seat 1: Sir_Les ( $200.60 )
Seat 5: Hero ( $253.05 )
Seat 4: dikhertz ( $190 )
nikii posts small blind [$1].
Sir_Les posts big blind [$2].
** Dealing down cards **
Dealt to Hero [ 9s 3c 7s Ac ]
FourFives99 folds.
atcdave calls [$2].
dikhertz folds.
Hero calls [$2].
MomoTheDog folds.
ismellgood raises [$11].
craznraizin folds.
nutnutmaker folds.
nikii folds.
Sir_Les folds.
atcdave folds.
Hero calls [$9].
** Dealing Flop ** [ 5s, Js, Jd ]
Hero checks.
ismellgood bets [$15].
Hero raises [$45].
ismellgood folds.
Hero does not show cards.