You’ve probably been to a web site with a long form sales letter or sales video. These sites are very simple—there’s generally only a single page on the site. That page is a very long page of sales copy for a single product. There are no other links on the site other than a “Buy It Now” or “Add to Cart” button. You either buy the product or you leave. Alternatively, the page might have a sales video instead. In that case, the page will be very simple, with a sales video that might last anywhere from 15 minutes up to an hour or more. Again, the only link on the page is the “Add to Cart” button.
