The lawsuit will be the second major lawsuit against a large high-tech company this year. The U.S. Department of justice sued Google, a California technology giant, in October, asking the court to rule that Googles actions in maintaining search and search advertising are illegal, and that Googles exclusive deal with mobile phone manufacturers protects its monopoly.
More than 40 states plan to join the Facebook lawsuit anonymously, the source said. Facebook and a spokesman for the New York Attorney Generals office declined to respond. The specific content of the lawsuit has not been released.