Webstat WebSTAT.Com is a free web-based service for analyzing traffic to your website. Perhaps the easiest counter to use. Just cut and paste the code to your page. Simply place TenZero WebCounters on as many of your web pages as you wish, and not only will your visitors see a handy, graphical display of how many visitors you have had to your page, but you can also get valuable statistical data on the hits to your webpages from our Statistics section. Extreme Tracking Unique , Week, Month, etc.
Paid service has more features.
This is the service this site uses. FXweb Webtracker Good Webcounter and tracker combined FastCounter by LinkExchange Great counter. Get stats by email. Several styles available too. Museum of counter Art Digits and Numbers for web counters.