If you want to make money, you need to create engaging content that is worth sharing, relevant, and to the point! By creating in-depth blog posts with “call out” actions, short paragraphs, and bullet points, you will make sure your readers will have a fantastic experience on your website.
Invoice Ninja, a free open-source invoicing app for freelancers and businesses, offers a Ninja Pro Plan for just $10 a month — and, as an affiliate partner, you can make 50% on all referrals for four years. That means, if you refer 100 Pro users, you'll receive $5,000 every year for the next four years.

Idea generation, when it comes to affiliate marketing, mostly depends on keyword research. Keywords are the phrases people type into their search engines when looking for something. The aim of your website is to help people find something that they need. Using that logic, your best bet at generating content that people will find useful is using some of the free keyword research tools out there.
To convince a person to sign up, you are going to give them a good reason. Access to an ebook, a free guide, or a free course is a great idea, and will definitely boost sign up rates.