The last thing I would say to new affiliate marketers is that self awareness is SO important. It’s easy to get caught in the routine of doing what you think is working, when it’s actually not working. Always be looking at what others are doing in your niche; always be re-evaluating your game plan; and always be thinking about new ways to hit your audience.
Always disclose your affiliate relationship. Most visitors will probably understand that graphic ads will lead to your getting paid, but if you write a review or use an in-text link as a recommendation, you want your readers to know that may lead to compensation as well. This ensures you retain transparency and trust with your readers, but also, it's required by the FTC's endorsement rules.