Q:  "What is Affiliate Marketing?"

A:  Affiliate marketing is the age-old practice of commissioned selling -- but done via the Internet.

Three parties participate in affiliate marketing.  You, the vendor, and the affiliate company.

The vendor has something to sell - e-books, software, physical products.  You have a blog or a website with some traffic running to it.  Or, you might create some traffic with pay per click advertising.  Then you've got the affiliate company, which is nothing more than a broker that acts as a go-between.

You place a link on your blog or website.  When a user clicks on that link and a sale results, you get a commission for that sale.  Commissions can range from 5% to 75%.