Social Media Is Facebook going to clobber Groupon? Look out, Groupon. You’ve got a behemoth of a competitor lumbering into your market. By Jackson WightmanMarch 14, 2011 SHARE The Wall Street Journal reports: “Facebook will soon start testing a service to provide local discounts to its more than 500 million members, a move that will thrust the social network into direct competition with daily deals provider Groupon Inc. … To read the full story, log in. Become a Ragan Insider member to read this article and all other archived content. Sign up today Already a member? Log in here. Learn more about Ragan Insider.