To insert some intelligence into your Google AdWords campaign, you need to create a way to track the click-throughs to your Web site. The best way to do this is to create a form on your landing page to capture the prospect's information, including the specific keyword. These forms should provide a clear call to action and a related offer to entice prospects to submit their information.
Automated services can further help you by sending the information you get from the forms directly to your CRM system. This way, you can include these prospects in your marketing programs and build a relationship with them, extending beyond the one click. These services also let you assign a tracking code to each prospect so you can track each and every touch you have with that person.
Once that prospect converts to a paying customer, you'll not only know that the person came in through Google AdWords, but you'll also know which keywords were most profitable. Then you can go back and refine your Google AdWords campaign to make the most of your marketing dollars.
Jeff Pedowitz is VP-professional services at Eloqua (www.eloqua.com), a provider of marketing automation software.