How Microsoft and Yahoo Are Selling Politicians Access to You

by Lois Beckett
ProPublica, June 11, 2012, 12:45 p.m.

Microsoft and Yahoo are selling political campaigns the ability to target voters online with tailored ads using names, Zip codes and other registration information that users provide when they sign up for free email and other services.

The Web giants provide users no notification that their information is being used for political targeting.