It's not often that I beat Michael Arrington to the punch but he's just discovered Blogbeat, an effective, but simple-to-install, service to track blog traffic. I've been using Blogbeat for a couple months and experienced some of the ups and down of a new service trying to get its act together before coming out of beta. What was particularly interesting was a recent tweak that was a classic one step forward, two steps back move. Fortunately, it was quickly fixed and the service works well and has a nice look and feel. The real test for Blogbeat will be if people are willing to pay $6 a month for the service at a time when Google Analytics - and presumably MeasureMap now that it's part of the Google empire - is free. Give Blogbeat credit for having a real business model predicated on selling a service - an unfortunate rarity within the Web 2.0 entrepreneurial landscape. In you are thinking about coughing up $6 a month for Blogbeat, a nice option is you can use PayPal.