Can you tell me the best affiliate program?

There are great affiliate programs. the question his which affiliate program is the best for you.

The best affiliate network for beginners is ClickBankafter you will have some experience, try one of the CPA networks like: Clickbooth.

If you are experience affiliate, look for 2 tier affiliate programs on competitive niches (for example: forex affiliate programs).

If you are web site owner, it's most important that you will promote products that are related to your web site content.