This top 100/counter site is a free service that generates traffic. Users sign up for a free account that gives them HTML code to place on their website. With that HTML code users get a counter for their site that displays a category of which they registered their URL. The more traffic the user gets to their site, the higher the ranking they get on the main sites top 100 index, in turn creating even more traffic for their site.

Accurate counting and anti-cheating to raise their ranking is helped by IP logging.

This site also features paid advertising for the banner system on the site, and text ads for your newsletter.