It doesn’t let the link influence its decision of whether to include or omit anything it deems worthy of inclusion, as to do so would damage its trust rating. There’s a lot you can learn from taking this stance. Remember, your site should be built with your visitors in mind, not profit. Take care of your visitors and the profits will take care of themselves!
Although I have never done much affiliate marketing, Peters's AFFILIATE MARKETING FOR BEGINNERS seems to me to be an excellent introduction. It surprised me that a lot of the material presented was useful for making money online in other ways than affiliate marketing. For example, there are recommendations concerning outsourcing content, on- and off-page search engine optimization, and press releases. I am not unfamiliar with such topics, and the recommendations seem very good. The whole book is clearly organized and well-written. There is even a bonus e-book provided at its end. This book is an outstanding value.
I did a lot of research to find the right one, and so I chose Making Sense of Affiliate Marketing by Michelle Schroeder-Gardner (as I mentioned earlier). I figured it made sense to learn from the best, and with a 30 day satisfaction guarantee, I had nothing to lose. I chat WAY more in-depth about it in my review here, but this course was definitely a gamechanger for me.
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.