Sellathon.com is a developer of tools for auction sellers.
Their View Tracker can tell exactly how your visitors found you, what key words they have searched for, how much time they spend on your auction, the best time of the day to sell and much more. Once you know how your auction visitors behave, you can take advantage of it. In order to use this service you must become a member and you will be charged $49 or $89 for advanced enterprise users. When you register you select a user name and a password, then you can log in to your account and you will get a tracking code. You can sign up free for newsletter to receive news on current and upcoming projects and comment on the online auction industry. 
