TechCrunch Leaves Federated Media; Will Manage Own Ad Sales

imageMike Arrington said months ago that the TechCrunch-Federated Media marriage was in trouble — he called it a “love/hate relationship” — and now he says it can’t be saved. TechCrunch is leaving the ad network founded by John Battelle (pictured, right) because, according to Arrington in a TC post, “we