Who is Winklevoss Twins from The Accidental Billionaires: The Founding of Facebook: A Tale of Sex, Money, Genius and Betrayal and what is their importance?

The Winklevoss twins were two of many people that Zuckerman doublecrossed. The twins attended Harvard and were on the rowing team. Slated to participate in the Olympics, the twins hired Zuckerman to finish up some programming on a social networking site that they were working on. They later sued and won a lawsuit against Mark.