Sex, meth and Internet spark new AIDS fears Wed Jan 17, 2007 2:54 PM ET By Matthew Verrinder NEW YORK (Reuters) - An hour after speaking at a Crystal Meth Anonymous meeting about the benefits of sobriety to dozens of other recovering addicts, Charlie was alone in his Chelsea apartment, logged onto the Web site Adam4Adam.com. He cruised the site's profiles of muscular gay men who want to meet for sex while high on methamphetamine, and found his match: a 50-year-old man from Manhattan's Upper East Side who liked to "slam" the drug, or inject it directly into the bloodstream....