Once again Google offers an excellent free tool to help with site tracking called Google Analytics. This tool allows you track how often people view your web site. It also lets you know how they got to your site. You can gauge the effectiveness of your advertising efforts to send traffic to your web site.  Analytics also offers various graphic displays that allow you to interpret the data collected about your web site.

Google Analytics is free! I can walk you throught the process of adding this feature to your web site. There is a one-time setup fee for this service.