By and large, the top resources for affiliate marketers aren't so different than the resources for standard businesses. Of course, affiliate marketers have some unique concerns: payment scale, new affiliate opportunities, where to place links, etc. But affiliate marketers are the most successful when they don't think of their sites as "dummy" sites, but full-fledged business opportunities. Another way of stating this is an affiliate marketing business and the host business are one and the same.
For both affiliates and marketers, one of the most important tools available is the site meter. Affiliate marketers should check in and out clicks. In-clicks will tell you what searches are being used the most often. You could then write some additional targeted content around this search term to bring in even more web surfers. Out-clicks are just as important. Out-clicks will show you which pages are the least popular. You will want to write some new content and/or redesign the page to help with a page's popularity.
The key to any web business is driving traffic. This traffic needs to be monitored to determine where the site has been most effective. Remember, anything can be improved. Even if you're very satisfied with the amount of traffic you're getting, there are still thousands of web surfers out there who have never heard of your site. Improved content, site functionality, and useful affiliates can all drive repeated traffic to your site.
A website should never be static. You should never just design a site, leave it alone, and hope for the best. It should be monitored and improved--possibly even on a daily basis. Blogging has been an important and highly succesful addition to the affiliate marketing industry. Every day, affiliate marketers can write new content aimed at drawing in a different demographic, or expanding the customer base of a current demographic. Forum software is another good tool for keeping people on site and interested in the site's contents. Both forums and blogs are good for bringing in new registration. An affiliate marketer should keep track of past browsers just like a standard business. Lead generation and organization are important for marketers as well.
Affiliate forums are some of the best places to find information on new affiliates. Certainly, there is stiff competition between affiliates, but there's also a willingness to help each other out. If an affiliate has a particularly bad reputation, you can get the lowdown in the forums. At affiliate forums, you can also find web design tips, read about past successes, and basically start to get a foothold in the industry. As link popularity is enormously important for search engine rankings, you can begin link-partner relationships in forums as well.
