In Michigan, a federal judge last month issued a default judgment for more than $300,000 in a suit filed by a woman whose photos appeared on yougotposted. The Web site continues to operate despite at least four lawsuits filed against its operators, including one that alleges that the site published images of under-age girls. The alleged owners and operators of yougotposted have either not responded to the lawsuits or have denied the allegations.

Ms. Taschinger is one of 25 plaintiffs, five of them under age, who are suing Texxxan.com, along with its operators GoDaddy, the company that hosted the now-defunct site, for invasion of privacy.

Ms. Taschinger’s ex-boyfriend, Eastwood Almazan, is also named, along with seven other men who the suit claims uploaded photos of plaintiffs. In a telephone interview, Mr. Almazan, 35, denied posting the images of Ms. Taschinger or any other women. He said he was not familiar with the Texxxan.com Web site and did not own a computer at the time the photographs appeared.

“I don’t know where they’re getting this information from,” Mr. Almazan said.

John Morgan, a lawyer in Beaumont, Tex., who represents Ms. Taschinger and the other plaintiffs, said that Texxxan.com is under investigation in Texas by the F.B.I.’s cybercrimes division and the Orange County Sheriff.

Aaron McKown, a lawyer representing GoDaddy, which has filed an appeal contending that Section 230 of the federal Communications Decency Act exempts it from liability for posted material, said in an e-mail that the company does not comment on pending legislation.

Messages left for a lawyer representing Hunter Taylor, the operator of the Web site, were not returned. (In a document filed with the court denying the allegations in the lawsuit, Mr. Taylor said, “Attempts to contact Hunter T. Taylor by the press will be of no use, as there will be no comment.”)