StatCounter

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StatCounter is an amazing utility if you run web sites. It is a free but invisible web tracker (no adware), which is highly configurable and provides real-time detailed web stats. Insert a simple piece of code on your web page and you will be able to analyse and monitor all the visitors to your website in real-time! Find out what keywords visitors use to find your site, which are the most popular pages, what links are used to reach your site, what countries your visitors come from, how visitors navigate through your site, how long they stay, etc. You can even receive regular email reports. And it's all free!!

Available from http://www.statcounter.com/