A Missouri woman has been charged with cyberbullying for allegedly posting photos and personal information of a teenage girl on the "Casual Encounters" section of Craigslist after an Internet argument.

Prosecutors said 40-year-old Elizabeth A. Thrasher posted the 17-year-old's picture, e-mail address and cell phone number on the Web site in a posting that suggested the girl was seeking a sexual encounter.

Thrasher, of St. Peters, is the first person charged with felony cyberbullying under a law passed in Missouri after the suicide of 13-year-old Megan Meier, who was the victim of an Internet hoax that drew international attention.