Case in point: http://www.web-strategist.com/blog/2008/08/01/how-janet-fooled-the-twittersphere-shes-the-voice-of-exxon-mobil/ http://www.web-strategist.com/bl

Case in point: http://www.web-strategist.com/blog/2008/08/01/how-janet-fooled-the-twittersphere-shes-the-voice-of-exxon-mobil/ http://www.web-strategist.com/blog/2008/08/01/how-janet-fool... (Random twitterer pretends to be official spokesperson for Exxon)