10% of Twitter members account for 90% of tweets

SHOOT: Twitter had 32.1 million unique visitors in April, so perhaps 3 miilion are active. That number is probably likely to grow steadily though. I also think for some people Twitter is very useful, for others, it may not have an obvious use.

clipped from www.news24.com San Francisco - Barely a peep is heard from most Twitter members despite the soaring popularity of the micro-blogging service, according to a pair of freshly-released reports. Web analytics firm HubSpot found that nearly 55% of 4.5 million Twitter members monitored have never "tweeted" - fired off concise text messages to others using the micro-blogging service. More than half of Twitter members have no followers and about 55% of them aren't following anyone else's micro-messages, according to a "State of the Twittersphere" report by HubSpot. Meanwhile, a study by Harvard Business School researchers concluded that 10% of Twitter members account for 90% of tweets. "A typical Twitter user contributes very rarely," Harvard MBA student Bill Heil and assistant professor Mikolaj Piskorski said in a university blog post containing the findings. "Among Twitter users, the median number of lifetime tweets per user is one."