Twitter Still Dominated By Noisy Minority, Study Finds

Twitter Still Dominated By Noisy Minority, Study Finds:

"Though Twitter has around 200 million users, the report found that 50% of tweets (there are around 140 million sent each day) are generated by 20,000 'elite' users, or less than .05% of all users. A 2009 Harvard study drew a similar conclusion, reporting that just 10% of Twitter's users produced 90% of the service's tweets."