Facebook offers email and phone number ad targeting

Facebook is launching a new ad targeting tool that uses email addresses, phone numbers and game and app developers’ user Ids to larger advertisers. The advertisers will work directly with a Facebook sales representative, and in order for a company to track a Facebook user using any of that data, the Facebook user has to have already given the company that data on their own. Advertisers will have the ability to use phone numbers, email addresses and the “UID” code the Facebook users generate when they install apps on the network.
Facebook had been planning to roll this out next week, but the glitch caught the social network by surprise, and caused a scramble to explain how it works.Facebook declined to say which advertisers and how many of them had participated in beta testing in recent weeks.