Interesting facts about Twitter

1.New York has the most Twitter profiles.
2.At least half of all tweets are created using tools or mobile devices instead of logging into Twitter.com
3.More than 70% of all Twitter accounts were created in the first half of 2009
4.About 20% of all Twitter accounts are blank
5.Slightly more than half of Twitter users are female

source: http://www.authorityseo.com/2009/07/06/9-interesting-facts-about-twitter/#