Facebook co-founder Mark Zuckerberg pictured on a screen getting ready to ring the NASDAQ opening bell in New York's Times Square on May 18. Lawsuits piled up Wednesday against Facebook, its ... more 

Facebook co-founder Mark Zuckerberg pictured on a screen getting ready to ring the NASDAQ opening bell in New York's Times Square on May 18. Lawsuits piled up Wednesday against Facebook, its underwriters and the Nasdaq exchange Wednesday as angry investors sought to recover losses from the company's flop $16 billion IPO less