1. Understanding Twitter!!!

2. June 2009 An In-Depth Look Inside the Twitter World

3. Twitter's Hockey Stick-Like Growth in 09

5. 2009 onwards, 72.5% of Twitter users have signed up for the service. This includes 22.7% of total users in March and 19.7% in April.

8. Twitter Self-Disclosed Age Demographics 65% of Twitter users are under the age of 25

9. 65% of Twitter users are under the age of 25. Statistics suggest Twitter is growing in popularity among younger people

11. Number of People Followed

14. Number of Followers

18. Followers vs. Following Activity

22. The More Followers, the More You Tweet

26. Tweets/Day

30. Twitter Activity

34. How Active Are Twitter Users?

38. Twitter Activity by Day of Week

42. Twitter Activity By Time of Day

46. Publishing Tools

51. iPhone Users on Twitter

57. Top Twitter Countries

61. Fastest Growing Cities

65. Most Common Keywords in Twitter Profiles

68. Insights on Social Media Marketers Using Twitter

70. Average Tweets Per Day

74. Number of Friends

77. Number of Followers

80. Most Common Keywords in Profile of Social Media Marketers

82. Twitter Communities