If Twitter was a Village formed by 100 people,  5 of them would be known as loud mouths who create 75% of all the Twitter conversations. Twenty people would be dead because they have not tweeted at all, and 50 users would be lazy, whereby they have not tweeted at all in the past week. Moreover, from the average 100 tweets, 40% would be pointless babble… See the full study at Information is Beautiful Via CMSWire