In its simplest form it is a form of marketing, where if you refer someone to a product, and they end up buying it, you will receive a commission. The size of the commission depends on the product and the business selling it. Some products can earn you a repeat commission over a period of time.

Clickbank is a company who provide a method of allowing publishers of products a means to sell them. When a product is sold through Clickbank, the person who referred them will get a commission on the sale. 

Clickbank provide daily stats showing information about the products they sell. These include the price, the commission you can earn and something called Gravity. This is Clickbanks measure of how popular the product is in the marketplace. Unfortunately, knowing a product has a Gravity of 34 has no real meaning in itself. To fully understand the poplarity of a product, you need to know its Gravity over time. This is where CBSnooper comes in. We track all the products on the marketplace and present the stats in easy to understand graphs. 

That product with a Gravity of 34 may not look so good to promote if you know it had a Gravity of 134 last week. It may be a dud.