Facebook will launch a second mobile ad product which will serve ads to users based on which other apps they’ve downloaded onto their phones—raising concerns over privacy, according to the Wall Street Journal:… ads for apps directly in a users’ News Feed on their mobile devices, whether the consumer has noted an interest in that company or not,
Facebook engineers have built technology that lets the company track what apps people have on their phones and target ads based on that information, these people said.
The problem, according to the WSJ, is that “the product allows Facebook to know which apps users have downloaded on their phones and then target ads based on that information.”
Previously, Facebook largely served ads keyed by users’ own preferences, friends, and their Likes. Sponsored stories, for instance, Facebook’s first mobile ad product, serves ads triggered by users’ brand mentions in their status updates.
Next up: A launch on July 16, with more detail coming in its Q2 2012 earnings call on July 26.
Disclosure: The author owns 30 shares of Facebook stock.
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