Liberate your web analytics: Meet Piwik
I'm sure some of you must have heard of Google Analytics. Analytics is a service provided by Google, that keeps track of a site's traffic flow. What this means is, that is tracks visits (visitors, referrals, duration of each visit, page clicks, percentage of recurring visitors, etc.). Using this service you have a very good picture of your site's traffic. Of course, you have a wide variety of filters to apply when viewing the statistics.