You’ve read all of your free items this month. To register, get added benefits and unlimited access to articles, Become a Member. Already a Member? Sign in. Advertising Age Article Abstract In Prelude to Ads, Facebook Tests Video Posts That Play Automatically Small Group of U.S. Android Users Will See Autoplay Video from Other Users and Celebrities By Cotton Delo, Published on September 12, 2013 4 Want more Access, Content & Connections? Upgrade to Membership. We are glad you are enjoying Advertising Age. To get uninterrupted access and additional benefits, become a member today. Become a Member Already a member? Log in.