Facebook has touched a nerve with a broad range of critics upset about the social network’s latest batch of online sharing technology. Ten consumer and privacy groups have joined Reps. Ed Markey, D-Mass., and Joe Barton, R-Tex., in calling on the Federal Trade Commission to investigate new sharing mechanisms designed to accelerate the collection and dispersal of information about Facebook users’ Internet activities. In the spotlight are Timeline, a feature that maps everything a user has ever done on Facebook, and several “Open Graph” applications designed to broadcast a user’s surfing patterns and Web interests to friends and friends of friends. Click here for more on the story.