Social Media Infographic: What’s trendy in the Twittersphere Who’s on Twitter, why they’re there, how they access it, and more juicy details about the 140-character network. By Kristin Long@KristinMLongOct. 4, 2011 SHARE How often do you tweet? 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.