Occasionally, we talk about some of the latest Twitter facts to see how much the site is growing.  We have seen both the amount of users and the numbers of tweets each month continue to grow, with an occasional slow down.  But a new study from Barracuda Labs, a Web security company, shows that not even a third of the users are tweeting.

The study looked at an astonishing 19 million users, and defined a “True Twitter user” as someone who has at least 10 followers, is following 10 others, and has at least 10 tweets.  Seems simple, right? Surprisingly, only 21 % of the 19 million were defined at a true user.  So 79% of twitter users rarely even use their account! (more…)