"In Cyberspace, nobody knows your race unless you tell them. Do you tell?" Several years ago, I put this slogan on a poster advertising an MIT-hosted public forum about race and digital space. The resulting controversy was an eyeopener. Like many white liberals, I had viewed the absence of explicit racial markers in cyberspace with some optimism—seeing the emerging "virtual communities" as perhaps our best hope ever of achieving a truly color-blind society. But many of the forum's minority participants—both panelists and audience members—didn't experience cyberspace as a place where nobody cared about race. Often, they'd found that people simply assumed all participants in an online discussion were white unless they identified themselves otherwise.