In 2006, the most active sectors for affiliate marketing were the adult gambling, retail industries and file-sharing services.[21]:149–150 The three sectors expected to experience the greatest growth are the mobile phone, finance, and travel sectors.[21] Soon after these sectors came the entertainment (particularly gaming) and Internet-related services (particularly broadband) sectors. Also several of the affiliate solution providers expect to see increased interest from business-to-business marketers and advertisers in using affiliate marketing as part of their mix.[21]:149–150
Another way to find this information is to do a simple Google search. For example, one could place the following phrase into Google Search:  “(product name) + affiliate program”. (Replace “product name” with the name of the product you are promoting.) There is an interesting chrome addon called Affilitizer is available which makes this process easy.
The General Data Protection Regulation (GDPR), which took effect on May 25, 2018, is a set of regulations governing the use of personal data across the EU. This is forcing some affiliates to obtain user data through opt-in consent (updated privacy policies and cookie notices), even if they are not located in the European Union. This new regulation should also remind you to follow FTC guidelines and clearly disclose that you receive affiliate commissions from your recommendations.
As you probably guessed, the scale of strategies behind promoting Clickbank products is much larger than the ClickBank itself. One thing you must understand is the fact that you need to choose your strategy based on the product, not what you know. Every product has a different audience and every audience requires a different approach, that’s why if you want to become a super affiliate on Clickbank, you need to learn these different strategies and choose the right one based on what you promote.