How established is your site/blog/social media following? Do you already have an audience of 1 million or are you just getting started? Early on in your affiliate marketing journey you will probably want to have multiple options to make sure you can cover a broad field. You might want to become an Amazon Associate as well as joining one of the networks so you will have a product link to drop into any posts you do. An easy place to start is to promote the services you are using if you are enjoying their product - web hosting or email management systems like Aweber.
You can find the high ticket affiliate programs here. By contrast, those could be super expensive items, but I haven't taken into account the percentage they pay. Would you rather make 60% of $100 or 1% of $60,000? Same thing! So what you promote really depends on your interest, but these two categories of affiliate programs are great for inspiration.
Coursera offers MOOCs (massive online open courses) created and taught online by universities such as Northwestern University, the University of Pennsylvania, and the University of California system. These courses start at various times throughout the year, so browse the catalog to see when one lines up with your schedule. Below are a couple courses that are perfect for content marketers -- here's what a module for #4 looks like:
Shopify is a platform for creating, managing and promoting online stores. In addition, it is one of the top paying affiliate programs. Shopify offers a 200% commission for every user who acquires the standard subscription (which can equal up to $598) or a 100% commission for every purchased enterprise plan ($2,000). You can promote Shopify via pre-made banners and links.
In addition, you must know how much you want to earn by joining affiliate programs. Will it be your main source of income or just an additional one? For the first scenario, you should consider promoting products that are expensive and, consequently, that can bring you a good profit. If you plan on the second scenario, you can opt for affiliate programs that pay for sign ups or affiliate programs that pay daily.