Twitter has been so generous to open up its app to developers to make some really great tools. Sure, you can manage your Twitter profile directly via Twitter (an always free option), or you can try out tools like Just Unfollow, which allows for bulk sorting and filtering of your followers, along with insights into the demographics of the people in your audience.
Unscrupulous affiliates can squat on domain names with misspellings and get a commission for the redirect. They can populate online registration forms with fake or stolen information, and they can purchase AdWords on search terms the company already ranks high on, and so on. Even if the terms and conditions are clear, an affiliate marketing program requires that someone monitor affiliates and enforce rules.
Don’t put all your eggs in one basket. If you only promote one merchant’s products, you are stuck with their commissions, their landing pages, and ultimately, their conversion rates. It is important to work with many different merchants in your niche and promote a wide range of products. This affiliate marketing strategy will diversify the amount of commissions you make and create a steady stream of revenue when building an affiliate website.
In the case of cost per mille/click, the publisher is not concerned about whether a visitor is a member of the audience that the advertiser tries to attract and is able to convert because at this point the publisher has already earned his commission. This leaves the greater, and, in case of cost per mille, the full risk and loss (if the visitor cannot be converted) to the advertiser.