8 Types of People Who Belong on Twitter

8 Types of People Who Belong on Twitter: "This applies both to actual celebrities, and people who are building a brand that can be clearly defined as having a 'voice.' People like Perez Hilton, Oprah Winfrey and Tony Hsieh of Zappos immediately come to mind. All of them have Twitter feeds and each of them has a very distinct voice. A recent post from the CEO of a company with projected 2008