Great post , I do read a lot of the Nichehacks articles and this one is so true. At the moment I am in a niche I'm passionate about and yes although I am primarily using Amazon to monetize my site, I will be branching out to use other methods very soon. It frightens me to think the plug can be pulled at any time! I intent to use other affiliate programs as well as Amazon, maybe Google Adsense, I'm not sure yet, some digital products and also to build an email list.
In regards to affiliate marketing, click fraud most often refers to generating “fake” clicks to a merchant program that is based on a PPC compensation method. The fake clicks (which can be generated in a manual or automated fashion) have no chance of converting for the merchant since the traffic clicking the ads have no real interest in the product or service the merchant is selling.
Also known as a publisher, the affiliate can be either an individual or a company that markets the seller’s product in an appealing way to potential consumers. In other words, the affiliate promotes the product to persuade consumers that it is valuable or beneficial to them and convince them to purchase the product. If the consumer does end up buying the product, the affiliate receives a portion of the revenue made.
You should also make sure you aren't competing with your own affiliates for eyeballs. Any marketing channels you're using, such as search engines, content sites or e-mail lists, should be off limits to your affiliates. Put marketing restrictions into your affiliate agreement and notify partners immediately. It's your program--you set the rules. Or, if you prefer, you can let your affiliates run the majority of your internet marketing.