Google Analytics is one of those cool tools that just give the mass amount of information Webmasters are looking for. It easy to set up and definitely deserves a try from anyone who wants to do any kind of website.
One of the cool features is the fact that Google Analytics uses many very rich charts that are interactive. If you are on the time line and you select a point on the graph at say March 15th, you will go to that day specifically. For every chart there is also a table of data below it for people who would rather see a table of data.
Besides that, Google can pinpoint where people are in the world and map it out so you can view whwere your hits are coming from. You cans et up goal pages to see how many people start at your home page. Go to page x, then page y, and finally land on page z. This is helpful for marketers and sellers because it can allow you to see how a customer got to the checkout page of product x.
Overall, I am very impressed with Google Analytics. It works flawlesslly with Adwords so you can buy the correct keywords, and is very accurate. http://www.google.com/analytics anayltics for more info