Affiliates have the opportunity to earn a percentage of every purchase made by every customer they refer to any of 100,000+ ClickBank producs. These affiliates generate well over half of the sales of ClickBank Marketplace top selling products..

Every product listed in the Directory is associated with ClickBank sales commission rate. Commission percentages range from 1% to 75%. On any one sale the minimum commission is $0.25 and the maximum is $100.00.

In the Directory products are ranked by their "productivity score". To preserve the integrity of the system we do not publish the formula for the score, or the score itself, but we can say that it is a function of these four factors:

1. $Earned/Sale: Average net amount earned per affiliate per referred sale. Note that this is the net earned per actual sale, and so it is impacted by refunds, chargebacks, and sales taxes. (Effective 28 July 2005, unfunded sales, such as returned checks, do not impact this number.)
2. %Earned/Sale: Average percentage commission earned per affiliate per referred sale. This number should only vary if the publisher has changed their payout percentage over time.
3. %Referred: Fraction of publisher's total sales that are referred by affiliates.
4. Gravity: Number of distinct affiliates who earned a commission by referring a paying customer to the publisher's products. This is a weighted sum and not an actual total. For each affiliate paid in the last 8 weeks we add an amount between 0.1 and 1.0 to the total. The more recent the last referral, the higher the value added.

All factors are combined, and adjusted such that more recent sales activity is given greater weight. Products are not listed until at least one has been sold.

To improve their Marketplace ranking products must show a history of reliably converting referred traffic to paying customers over the past 8 weeks. Products that maintain a higher ranking naturally attract more affiliates, and make more sales overall.