Peter Kafka

Recent Posts by Peter Kafka

“Cross-Device” Ad Tracker Drawbridge Rounds Up $6.5 Million From Sequoia, Kleiner Perkins

Drawbridge, an ad tech start-up founded by AdMob engineer Kamakshi Sivaramakrishnan, has raised $6.5 million from Sequoia Capital and Kleiner Perkins Caufield & Byer. Drawbridge says it can help marketers target potential customers by tracking them as they move around from device to device — like from a laptop to an iPhone. Sivaramakrishnan put in six months at Google after it acquired AdMob, before starting her own company.


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I think the NSA has a job to do and we need the NSA. But as (physicist) Robert Oppenheimer said, “When you see something that is technically sweet, you go ahead and do it and argue about what to do about it only after you’ve had your technical success. That is the way it was with the atomic bomb.”

— Phil Zimmerman, PGP inventor and Silent Circle co-founder, in an interview with Om Malik