All that sharing taking place on Facebook is largely inaccessible to Google and other search engines. And Facebook is consuming a lot of people's time. In May, 180 million people visited Google sites, including YouTube, according to research firm ComScore. More than 157 million visited Facebook. And those Facebook users spent an average of 375 minutes on the site versus 231 minutes on Google.
One of the most major screw ups was a social networking service for Gmail users called Buzz which automatically included their e-mail contacts in the network, setting off a firestorm. Google changed the service and in March settled with the Federal Trade Commission and agreed to 20 years of privacy audits.
Google seems to have learned a lesson with Google+ about people's desire to control what information they share.