2. Urban Ninja
4. Bob Skinstad
8. Helen Zille
10. Sue Rutherford
Ranking is based on Follower/Following ratio for users with more than 1,000 followers. The Top 9 all have ratios of >3.
Although I’m not a Top Ten Twitterer, you can still read my tweets at http://twitter.com/geekrebel
Thanks goes to Twitterholic for the stats!