Whysoserious.com/Laughtilithurts/Static.htm is the solution to Whysoserious.com/Laughtilithurts. It contains a Acme Security Systems video feed (CAM 4131) of Dock 138 at Gotham harbor on 6/16/08, 03:02:03:87 to 03:02:18:57.
At 03:02:13:22, the feed cuts out and flashes the first image of the Joker from Ibelieveinharveydenttoo.com.
The third episode of Gotham Tonight (6/23) reveals that a large shipment of ammonium nitrate had been stolen off the docks 7 days before, and that the perpetrator was "crazy enough to smile into the surveillance camera." From this information, it can be concluded that the Joker is the thief, and that he likely has enough ammonium to make a substantial amount of bombs.
(Whysoserious.com/Laughtilithurts/Static.htm) -- direct link