Internal Which employees check social networks the most at work? A recent study found that only one-third of employees admit to using social media at work. Guess which department does it most. By Michael SebastianNov. 15, 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.