American Olympic rower Cameron Winklevoss is widely known for his legal battle with Facebook founder Mark Zuckerberg. While a senior at Harvard University, Winklevoss and twin brother Tyler, along with classmate Divya Narendra, conceived the idea for a social networking site for Harvard students called HarvardConnection, later renamed ConnectU. They enlisted the help of Zuckerberg to write code, and after Zuckerberg verbally agreed to finish the HarvardConnection site, the brothers claimed that he delayed his work and then developed competitor, "thefacebook.com." The Winklevoss brothers and Narendra sued Zuckerberg for $140 million in 2004, alleging that he had broken a verbal contract and copied their idea, in addition to illegally using source code. In 2008, after competing in the Beijing Olympics, the jocks reached a settlement with "Zuck," which was reportedly valued at $65 million. However, in 2010, the "Winklevii"' claimed they were misled about the value of Facebook stock. A federal appeals judge recently affirmed a lower court ruling which said that the twins cannot unwind the 2008 settlement. We can't tell these guys apart, so we're not sure who's who in the photos. But we included pics that will assuredly titillate our female (and some male) readers. The buff, litigious, preppies are the sons of Howard E. Winklevoss, Ph.D., a professor of actuarial science at the Wharton School of the University of Pennsylvania. Dad also operates a couple of businesses and is reportedly worth $100 million.