Last week the blogosphere was all a twitter about Twitter, the latest way to share your every move (or keep track of your friends’ activities). There’s even a site called Twitterholic, so you can see who the most popular Twitterers are. Follwing on Heather’s post from last week, here are some more US statistics.

The market share of visits to Twitter increased by 55% from the week ending 3/10/07 to the week ending 3/17/07. It ranked 41,100 among all sites and 1,412 out of the 4,867 sites in the Net Communities & Chat category, which shows just how far it has to go to reach mass adoption (although the true measure of its success will be mobile usage, not just web usage). The average session time for Twitter was 8 minutes 56 seconds, showing that the website is engaging its users. We will definitely keep an eye on on this one.