While U.S. federal authorities continue cracking down on Internet gambling site operators, New Jersey governor Chris Christie this week signed a bill legalizing online gaming in his state. And by this fall, long before Toronto's proposed waterfront casino materializes, Ontario Lottery and Gaming will be operating an online gambling portal. The reason is clear: cash... McGill University professor Jeffrey Derevensky says ubiquity, convenience and even cost make online gaming impossible for many gamblers to resist. "Gambling online minimizes restrictions," says Derevensky, an expert on problem gambling. "You don't have to go out of your house."