He counts: Konrad Feldman, a cofounder of San Francisco–based startup Quantcast, sees big business in audience measurement. Credit: Toby Burditt

In August 2006, when Roger McNamee invested in Forbes, he did so in part because its Web audience was thought to be huge. McNamee is a founder of Elevation Partners, a Silicon Valley private-equity firm that counts Bono of the rock band U2 as one of its managing partners; it specializes in big, bold investments in media and technology. Onstage at EmTech, Technology Review's annual conference, he said, "Look: I'm not investing in Forbes for its dead-trees business."

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