Google Analytics is the next-generation web analytics tool that show you how people find your site, how people navigate through it, and how they become customers. Google Analytics is both easy to use and offers an enterprise-class reporting interface. Google Analytics is also free!
With over half a million contributing developers in 200+ countries, Drupal powers over 2% of the web including such diverse sites as The White House, Economist.com, Examiner.com, Amnesty International, MTVuk, .net magazine and Data.gov.uk.
Drupal (pronounced drew-pull) is a Content Management System and web application development software written in a popular scripting language - PHP.
Drupal has over 11,000 modules and over 1,000 themes, along with both a point and click interface to allow tech-savvy people to put together websites with no programming experience; and an API and framework for programmers to develop unique applications.