Pay per sale is an affiliate business model where you get paid by the merchant on every sale you make for them. This is a popular way to make extra money because you can earn anywhere from a few dollars per sale to thousands of dollars.

You can find pay per sale affiliate programs to join in almost any niche online today. For example Amazon.com is credited with one of the very first affiliate programs.

Today selling information is a very good way to make extra money. People will pay for information that solves problems.

The largest information affiliate program in the world is ClickBank.com.

Affiliate Program Directories are a good place to find numerous products to sell in various categories. One of the best is run by Allan Gardyne of Associate Programs.

A very good system and easy to follow system to selling affiliate products online is the 7 Day Profit System.

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