Wikipedia.org defines Google Analytics as: a service offered by Google that generates detailed statistics about a website’s traffic and traffic sources and measures conversions and sales. (http://en.wikipedia.org/wiki/Google_Analytics)
Using google analytics is VITAL to today’s web marketers and business owners. Without a way to track web users activity it’s hard to tell if your marketing is working. Brandidnity.com wrote this Article. Some of the key points they touched on are: unique visitors, average time on site, traffic sources, and keywords. All of these topics can help a marketing team pull in more traffic to a companies website, in turn driving sales up!
Analyzing Google's Analytics 