StatCounter offers a popular tracking service that tracks up to 15 million page loads with a limit of a 25,000 log size for only $29 per month. If you are monitoring a small site with few visitors, they offer a free version that supports a log size of 100 or a $9/month version with a log size limit of 1,000.
Their service does not offer ecommerce reports but does offer an invisible/visible counter, visitor and page load stats and you can manage multiple websites from one account. You can even magnify your users and view popular navigation paths. For a low cost service, this is a good choice, especially if you do not need conversion stats.
Unlike many services, StatCounter offers almost identical reporting abilities for all of their packages instead of just the higher priced versions. They do not place banner ads on your site nor do they require you to put their advertising on your site, they also support a good privacy policy and do not sell email addresses.
We would recommend this service for low or high traffic sites that do not need conversion stats.
Please Note: We did not actually install tracking code into our HTML pages from this service. Review is based on available information, demos and experiences with customer service.

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