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In November 1999, Douglas Edwards became fledgling Google's first "brand manager," making him employee No. 59. In this excerpt from his new book, "I'm Feeling Lucky," Mr. Edwards gives an inside view of the company's early days, starting with his job interview with co-founder Sergey Brin, then 26 years old.

Techniques like "evercookies" and "device fingerprinting" are new and controversial in the online ad industry, but they're widely used by firms that seek to catch cyber criminals.