Conversion Funnel?
When internet users (surfers) click on web banner ads and PPC they arrive at a conversion funnel. It is also called a sales funnel, marketing pipeline, or Checkout Process.
This could be made up of landing pages, shopping carts or lead generation pages.
The conversion rate optimization process helps you understand your web site visitors and personalize their shopping experience.
Conversion funnels are essential to maximize your ROI on online advertising (PPC), affiliate programs or SEO.