There's no doubting that Facebook hold an incredible amount of information about people. They now plan on using this information to better target advertising on third party publishers, effectively becoming a vast display advertising network. This will be powerful stuff for advertisers, but will understandably concern some privacy activists.
"Publishers and app developers have some users who aren’t Facebook users," Andrew Bosworth, vice president of Facebook’s ads and business platform, tells the Journal. "We think we can do a better job powering those ads."