Unless you are running an online commerce business it can be difficult to track Web sales from contact to conversion. Mike Moran over at searchengineguide.com has some ideas for how you can get started.
If you are currently doing nothing I would recommend at a minimum a dedicated phone number, contact email address and a CRM solution. If your reading my blog I know you don’t have a salesforce budget but there are wonderful CRM solutions out there that won’t drain your wallet, try Highrise or Zoho CRM
After you find out what your site is really worth to your business give me a call and we will do that update you have been putting off.