In January, the Twitter Facts blog predicted Twitter would have 1 million users by April 1, 2008. But it looks like Twitter’s growth was underestimated. Twitter Facts now revises the estimate to 1 million users by March 1. Follow the solid line.
Via Steve Rubel (in the form of a tweet, appropriately).
Any Twitter users out there who want to stay in touch? Visit my Twitter profile at http://twitter.com/andrewcareaga and request to follow. I’ll return the favor.
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Now playing: The Coal Porters – Mr. Guthrie
via FoxyTunes

My question is how many of those million are active users, and how many have started, and abandoned Twitter accounts. That’s the problem we saw with Second Life. Everyone was wound up about their growth in members, but few looked at just how many were logging on every day. I don’t think Twitter is going to take a dive like Second Life has, but I still think active users is a more reliable metric.
Good point, DeWayne. Active users is a much better metric.
Andy,
Who has a Second Life account that I’ve used twice
Looks like you beat me on # of SecondLife logins by 1. :) It would be interesting to see # of active users. I was actually just putting together “Top5/Top10 Twitter User Failures”, starting with 2 of my good friends:
http://www.twitter.com/brianmcculloh
http://www.twitter.com/jesseknoll
Good stuff. :)
PS – would you mind changing our link in your blogroll to squaredpeg.com? :) sorry for the inconvenience.
Thanks for the heads up on the new address for your blog, Brad. My blogroll is now updated with the new addy.