Nine of the 10 largest ad networks are now participating in the industry's self-regulatory privacy program, the umbrella group Digital Advertising Alliance announced. In addition, a host of marketers,
including AT&T, Bank of America, BMW, Chrysler, Dell, Procter & Gamble and Verizon, are now using icons to indicate that ads are targeted based on data about users' prior Web activity.
--Wendy
Davis