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150 followers is the magic numbe

A small minority creates most of the activity

5% of users account for 75% of all activity, and 10% of users account for 86%. This seems to suggest that the site has managed to engage a mass audience beyond those who typically engage with social media.

Half of all Twitter users are not "active."

his leaves about 30% of users who have an account and have tweeted before, but happen to be inactive now.

Tuesday is the most active Twitter day

APIs have been the key to Twitter's growth & utility.

English still dominates Twitter

Twitter is being led by the social media geeks.

150 followers is the magic number. In a particularly interesting data point from the survey, Sysomos found that Twitter users tended to "follow back" all their followers up until about 150 connections. Then the reciprocation rate fell off dramatically, which seems to indicate that this number may be the crossover point where people shift from using Twitter for more personal use to using it more for "lifecasting" their thoughts and actions to a community of people who they feel varying levels of connection to.

150 followers is the magic number. In a particularly interesting data point from the survey, Sysomos found that Twitter users tended to "follow back" all their followers up until about 150 connections. Then the reciprocation rate fell off dramatically, which seems to indicate that this number may be the crossover point where people shift from using Twitter for more personal use to using it more for "lifecasting" their thoughts and actions to a community of people who they feel varying levels of connection to.