I love this Clickbank case study. The man in the video picks a product from the Clickbank Marketplace with good affiliate support from the vendor.
Then he creates a campaign based on the free tools that the Clickbank vendor supplies for him.
He wraps it up by buying cheap ad space from BuySellAds and directs the ad visitors to his landing page. Once they opt in to his list, he directs them to the vendor page.
This case study involves a diet product by the way. It's a product that has something to do with a tea.
Anyway, I hope you enjoy the video. It's about as straightforward an explanation that you'll get when it comes to creating sales through funnels.