"One such effort comes from Pear Analytics, which recently
analyzed a sample of 2,000 tweets and organized them into six
categories: News, Spam, Self-Promotion, Pointless Babble,
Conversational and Pass-Along Value.
"The results? Pear Analytics declared pointless babble the
winner, comprising 40.6 percent of the tweets in the sample.
"That would suggest that for many, Twitter remains an
unsophisticated vehicle for folks who take its essential question
-- "What are you doing?" -- at face value, and offer the world
status updates about things like shopping for produce or waiting in
line at Starbuck's."