CNN CNN Newsroom April 11, 2013 13:49:00
Companies that have a huge pile of consumer data on you and me, axiom, data logic and epsilon. they have dossiers from everything from income levels to what we buy, even social security numbers. facebook will match all that data to your fprofile and use that to create better target groups for its ads. until now, they could only base ads on information users provided. but that's all changing now. facebook is quick to point out that all of the data is anonymous, that advertisers, they will never know the identities of people seeing ads, but still. ew. >> can you opt out of ads? >> good news is y...