The Winklevoss twins lost the biggest social-network showdown ever when their rival, Mark Zuckerberg, walked away with Facebook. Now they are trying again—with a social network for professional investors.
Flush with at least $65 million from the settlement of a legal battle with Mr. Zuckerberg
Tyler and Cameron Winklevoss are backing fellow Harvard alumnus Divya Narendra, their ally in the Facebook fight, in the investment website. The Winklevosses have put $1 million into SumZero, which was founded by Mr. Narendra and another Harvard alum Aalap Mahadevia, in 2008.