US talk show megastar Oprah Winfrey made her debut on micro-blogging service Twitter on Friday with a shout out to her fans. Oprah issued her first tweet around 7:10 a.m. PDT Friday--the same day Williams and Twitter's top celebrity, Ashton Kutcher, will join her on the show.
Facebook fan pages for folks like Obama, Oprah, U2, and the New York Times are drastically changed. The focus is now on fans, and conversations among fans/celebrities ~ and NOT on the celebrities themselves. Users are now the "celebrities," and the marketing tool is "conversation," or "conversational marketing."