Hypertext Markup Language (HTML) is the standard markup language for creating web pages and web applications. This step is important to keep your costs down and still get what you want. If you're not familiar with basic HTML and basic concepts about running a website, invest in the time to learn; it will be well worth the outlay in the long run. Even if the site is basically a template for you to use, you're still going to need to know how to insert images, create hyperlinks, and do some text formatting.
You earn commission on anybody’s purchase, except yours, if they use your referral link within 24 hours. One tip here is that you can trade referral links with family members and friends and use their link to make your own purchases and ask them to do the same so there can be sharing of the spoils. This might not be the major way to make money in the affiliate program Amazon runs, but it can help your commission structure.
Affiliate networks offer you access to multiple (and by multiple, we mean hundreds if not thousands) of individual affiliate programs. They basically work by simplifying the signup process - instead of applying to become an affiliate for a each product you want to promote, you simply apply to join the network and instantly have access to hundreds of different affiliate offers.