Understanding what your visitors do on your site is crucial information, not to mention interesting. If a large majority of your visitors who proceed to purchase a product leave the site when they get to a specific page in the order process, you need to know about it. It could be that the page in question is confusing or hard to use. Fixing it could increase your sales exponentially. In fact, it is not uncommon for small website changes in headlines and order processes to result in a 200%-300% increase in sales. This is just an example; there are many reasons why you want a detailed analysis of your site visitors.
Most website hosting services offer a stats package that you can study. If you