Furious Facebook.com investors have filed a lawsuit against founder Mark Zuckerberg, alleging he knew the business had been overvalued ahead of its flotation last month.

Zuckerberg floated his social networking site on the U.S. stock market for $100 billion but shares soon dropped in price, prompting complaints from many investors.

Critics allege the CEO knew the stock was overpriced and protected his own finances by selling off the organization, according to TMZ.com.

Editors at the website report a lawsuit has now been filed against Zuckerberg, in which its alleged the site did not g...