To break down the question “Is affiliate marketing worth the effort?” take a look at the efforts I’ve laid out, and determine for yourself. In order to be successful in affiliate marketing you’ll need to choose a product category to focus on, learn about your audience, build a website or blog audiences can trust, create LOTS of content, and promote your content and your product, and with the right trial and error, you could be well on your way to receiving those commission checks from happy brands earned by referring happy customers. In terms of regular maintenance you will need to keep up with the latest online marketing trends, promote your content regularly, and continue learning about how your product category of choice is developing in today’s modern age in order to remain a trusted resource on your chosen topic.
Of course you want affiliates with high commissions, but they should also have a solid reputation with high conversions and low reversal rates (you get $0 if people cancel after signing up). If they’re part of an affiliate marketplace like ShareASale or ClickBank you can see some numbers there. Companies likes Amazon/SiteGround are safe bets, otherwise do your research (or track your affiliate links so you can monitor their performance). Avoid affiliates offering huge commissions since this probably means they’re struggling to acquire/retain customers naturally. This will hurt your numbers (specifically your conversions/reversal rates).