Groundswell on Social Tech

I saw this Forrester/Groundswell post on the growth of social tech lately, it describes the participation growth from 2007-2009 based on Forrester's useful classifications: creators-critics-collectors-jointers-spectators-inactives. Consistent in all of the categories except for the last. In 2009 only 18% are inactive. Also a link to international data by country, gender, age. Data is embedded and a widget is provided. Good.