When a friend told Hollie Toups that topless photos of her had been posted on an Internet pornography site, she felt horrified, but she didn't feel alone: She recognized more than a dozen other South Texas women on the website, she said.

Last Friday, Ms. Toups and 16 other women filed a civil lawsuit in Texas state court against the site, Texxxan.com, alleging that their intimate photos were posted illegally and included information that made them easy to identify. They are seeking damages and to have the site closed down.

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