Twittermania

Nielson Wire is reporting that unique visitors to Twitter increased 1,382 percent year-over-year, from 475,000 unique visitors in February 2008 to a whopping 7 million in February 2009, making it the fastest growing site in the Member Communities category for the month. Of course, most of the other destinations in the category have been online longer so they have a larger user base but still...

The largest age group on Twitter was 35-49; with nearly 3 million unique visitors, comprising almost 42 percent of the site’s audience. Nielson also found that the majority of people visit Twitter while at work and the ability to twitter via a mobile phone is a driving factor in the social network’s success.

Didn't I characterize Twitter as a web communications sideshow yesterday? Well, yes I did for library work-related activities. As a member of the Over-49 age group, I want to know whether the 35-49 age group Twitterati were writing/reading tweets for work-related reasons. [JH]