Study finds Google, Twitter and Facebook keep closest tabs on users

A new Princeton University privacy study suggests Google's user tracking tech is practically ubiquitous, and popular social network sites Twitter and Facebook are the next worst offenders.
google logo privacy big brother
REUTERS/Francois Lenoir
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San Francisco journalist Bill Snyder writes frequently about business and technology. His work appears regularly in CIO.com and the publications of Stanford's Graduate School of Business and the Haas School of Business at the University of California at Berkeley. He welcomes your comments and suggestions.