A large number of internet users contribute something to the conversation. This according to a Forrester Social Technographics study. What’s new in this diagram (the original came out three years ago) is the addition of ‘conversationalists’, a class of people that includes Twitterers and status updaters. Though the categories overlap, we still see the scale of contribution with 24 percent listed as creators, 33 percent as conversationalists and 37 percent as critics.
http://blogs.forrester.com/groundswell/2010/01/conversationalists-get-onto-the-ladder.html