The lawsuit claims the messages were posted in September at juicycampus.com. The woman alleges the statements included "vulgar, scurrilous and false" claims about her sexual history.
A federal judge has ruled that the woman can proceed anonymously to protect herself from additional humiliation.
Some observers say the lawsuit could chill free speech. They fear blog operators could be silenced or coerced into censoring their sites.
Information from: The (Wilmington, Del.) News Journal, http://www.delawareonline.com