Once you have a great product you believe and a target market, you'll need to stock a site with quality content that will help drive traffic and affiliate sales. This article has some great tips on the nitty gritty of creating your own website. Once you have your website set up, you'll want to optimized it for conversions and sales. Learn about the four qualities of an effective website.
The problem with affiliate marketing, like many other home business options, are the so-called gurus and get-rich-quick programs that suggest affiliate marketing can be done fast and with little effort. Odds are you've read claims of affiliate marketing programs that say you can make hundreds of thousands of dollars a month doing almost nothing ("Three clicks to rich!"). Or, they suggest you can set up your affiliate site, and then forget it, except to check your bank deposits.