I know I’ve posted this video previously, but Twitter is exploding into mainstream. Several good friends of mine (and a former professor) have recently joined Twitter (within the past week). It is on all of the news shows, on Oprah, and all over the web. Everyday people are hearing about Twitter and they don’t know what it is. Even my parents asked me to explain Twitter. As such, I’m reposting this video from Common Craft, explaining Twitter in Plain English.