Google Analytics is a free service offered by Google that generates detailed statistics about the visitors to a website. Its main highlight is that a webmaster can optimize AdWords advertisement and marketing campaigns through the use of GA's analysis of where the visitors came from, how long they stayed on the website and their geographical position.
Users can define and track conversions, or goals. Goals might include sales, lead generation, viewing a specific page, or downloading a particular file. By using this tool, marketers can determine which ads are performing, and which are not, as well as find unexpected sources of quality visitors
Google Analytics
With the eXTReMe Tracker you get every advanced feature required to picture the visitors of your website. Conveniently arranged, numbers, percentages, stats, totals and averages. All the way up from simple counting your visitors until tracking the keywords they use to find you. Information you can't website without!
Extreme Tracking
Site Meter's comprehensive real time website tracking and counter tools give you instant access to vital information and data about your sites audience. With our detailed reporting you'll have a clear picture of who is visiting your site, how they found you, where they came from, what interests them and much more.
SiteMeter
By a continuous enhancement of its web stats and free hit counter platform, ShinyStat has consolidated its worldwide success in Web Statistics and Web Analytics tools.
ShinyStats
Histats.com is the new professional web counter for web sites / blogs.
HiStats