comScore: Facebook Now The Third Largest Video Site In The U.S. | TechCrunchcomScore: Facebook Now The Third Largest Video Site In The U.S. comScore has released its July video metrix stats today, with the number of U.S. users watching online video content rising slightly to 178 million viewers compared to 177 million total viewers in June. In July, each viewer watched an an average of 14.7 hours of online video. And 84.9 percent of the total U.S. Internet audience viewed
