affiliate marketingAffiliate marketing — where you represent and sell other people's products or services, usually online.

Here are some “best of” links for affiliate marketers.

If you have specific questions, let me know in the Comments below, and I'll get answers to you right away.

Affiliate Marketing

Affiliate Marketing for Beginners: How to Make Your First Affiliate Marketing Sale in 7 Steps

Affiliate Marketing: How to Launch an Affiliate Marketing Campaign

Series of Affiliate Marketing Best Practices Articles

Ten Best Practices for Affiliate Marketing

Ten Best Practice Tips for a Profitable Affiliate Marketing Business

For other extra income ideas, see Extra Income Resources for Teachers and Other Smart People.