Edelman buys digital advocacy firm On Tuesday, Edelman announced that it had acquired Grassroots Enterprise, “a bipartisan digital grass-roots advocacy firm,” according to Politico ’s Mike Allen. Apparently, the acquisition will help Edelman tap social media for grassroots advocacy. By Ragan StaffJan. 25, 2011 SHARE 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.