A federal judge this week ruled that attorneys for Paul Ceglia won't be allowed to question Facebook founder Mark Zuckerberg or search his computers at this point in Ceglia’s federal lawsuit against the social network giant.

With an impending IPO that could prove to be one of the largest in US history, claims of being an early investor in Facebook are flying fast, reports the AFP news agency.

Facebook has won another court victory over twins Cameron and Tyler Winklevoss, as a Boston district court judge threw out a second lawsuit filed by the 2008 Olympians against the social networking giant and its founder, Mark Zuckerberg.

The Winklevoss twins are trying out another suit against Facebook just a day after they decided not to appeal a US Supreme Court ruling.

The Winklevoss twins, the brothers who reached a $65 million cash/stock settlement with Mark Zuckerberg and Facebook in 2008, after filing charges that Zuckerberg stole their idea for a social network in 2003, have ended their legal battle with the social network.