Twitter Statistics that you should know

[In continuation with our theme on Twitter, here are some global stats that you should be aware of.]

Twitter has achieved an unprecedented growth, and here are some interesting stats for you:

72.5% of all users joining during the first five months of 2009
85.3% of all Twitter users post less than one update/day
21% of users have never posted a Tweet !
5% of Twitter users account for 75% of all activity.
In terms of new twitter users, India is the 9th growing country.
93.6% of users have less than 100 followers, while 92.4% follow less than 100 people
More than 50% of all updates are published using tools, mobile and Web-based, other than Twitter.com. TweetDeck is the most popular non-Twitter.com tool with 19.7% market share.
There are more women on Twitter (53%) than men (47%), though when it comes to activity, male (54%) outnumber females (46%).
Of the people who identify themselves as marketers, 15% follow more than 2,000 people.

Behavior aspects

Until people have 150 followers, they follow about the same number of people. After that, this starts to break down
The average number of tweets made by the average Twitter user based on how many followers they have. Twitter users with a higher number of friends and followers tend to tweet more often
92.4% of Twitter users follow less than 100 people, while 97.8% of Twitter users follow less than 400 people.
The average number of tweets made by the average Twitter user based on how many people they follow. [data source]

bit.ly is the most popular, followed by tinyurl (source)

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