They're not illegal (yet). They're not state-sanctioned either. Heck, technically (if you believe the claims in the companies' fine print) they're not even "gambling." Internet sweepstakes parlors cropped up in several corners of the city late last year, looking for all the world like slots parlors by squeezing through a loophole meant for McD's scratch-off tickets. Supposedly, every spin of their electronic wheels is "predetermined" and thus not a "game of chance." Players can lose their money just as well-maybe better, since the games' managers don't give change back-as at the "legal slots." And the games' operators can keep the whole rake-until the scheme officially becomes illegal on Dec. 31.