An excerpt from an Economist Google/Facebook reality check
Indeed, Facebook's reputation is arguably even worse than Google's in this area—which may explain why, rather than concentrating on improving its own act, it has chosen to pay third parties to take a pop at Google instead. This Babbage's coverage of Facebook's shortcomings (eg, here) may explain why Burson-Marsteller left him off its call list. It is possible that Google may have some questions to answer about Social Circle's approach to data-sharing. But for now, it is Facebook that has egg all over its face.