Slides from my TEDGlobal 2010 talk - talk notes available at http://www.ethanzuckerman.com/blog/2010/07/14/a-wider-world-a-wider-web-my-tedglobal-2010-talk/
10. 8.3% 21m
17.7% 16m
5m
11%
5m
8.4%
3.8m
7.5%
2.8m 4.7%
2.4m 6.8%
1.9m
4.8% monthly unique visitors
1.5m % of internet users who use twitter
0.9%
1.2m
2.7% data from Google ad planner, June 2010