http://www.nytimes.com/2013/10/24/technology/personaltech/twitter-illiterate-mastering-the-bcs.html 2014-11-24 07:28:17 Twitter Illiterate? Mastering the @BC’s Only about 18 percent of American Internet users are active on Twitter, so here are some tips if you’re still new to the microblogging service. ===