A long-time trusted source recently alerted me that some inappropriate advertisements were running on Neopets.com, a Web site full of addictive Macromedia Flash games aimed at pre-teens. Surprisingly, the curators of Neopets.com — major media conglomerate Viacom — are disavowing responsibility for the racy ads, saying they did not exist on their network and instead were the result of adware or spyware on my source’s computer. Included is a screenshot taken of one of the multiple ads I found on the site, which linked back to Internet dating site True.com. A Neopets.com spokesperson said the ads could not have possibly have been served through its site, and that the ads must have been displayed by malicious software. “This appears to be a ‘malicious’ software program and we are aggressively investigating its origin,” the company said in an e-mailed statement. “We would never accept this type of ad on any of