The Blog DoggerUnions embrace Web 2.0 better than many companies Despite their silence on Twitter about the Wal-Mart trampling incident, many labor unions are more social media savvy than corporations. By Michael SebastianDec. 3, 2008 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.