Affiliate networks are intermediaries between merchants that sell products and affiliates that promote them. Joining one benefits merchants and affiliates alike. Affiliate networks allow publishers the ability to search through merchants (advertisers) and join them in one place. Furthermore, they allow merchants to reach a larger audience and promote them to all affiliates in the network.
If you had already joined Wealthy Affiliate (WA), then first of all click "Get Started Here" green bar on the left hand side menu of WA and start to learn the lessons. You will soon understand the system of WA after learning lessons there. We are telling you this because from your queries it is clear that you didn't understand anything at all about WA. There is not any comparison between WA and TrafficMonsoon (TM) because TM is just an advertising company where there is always risk of site getting down as those kind of business rarely sustain for longer time and more than that TM doesn't offer the real online work where as WA is king of real online work field. WA is the platform to learn everything about online work industry. Through the lessons of WA, you will learn to earn by doing real online works such as by making your own money making website, by selling stuffs of big companies like Ebay, Amazon etc., by advertisements of Google Adsense and many more. You will also learn to make referrals in expert way in any online work companies you work (such as in TM). You will also earn from affiliates you make within WA. You can try to advertise your WA's referral link within TM as well, but don't expect to get decent amount quality referrals from there. Once you learn all courses within WA, then you will even get the idea to get huge number of active referrals in any program you work. So, first of all follow the lessons of WA one by one, step by step.
Wirecutter's affiliate program might make you doubt the legitimacy of Wirecutter's recommendations -- but, in fact, it's quite the opposite. Wirecutter only makes commission when a reader purchases a product from an affiliate retailer and doesn't return the product. Wirecutter, then, has no incentive to promote inferior products -- if they did, they'd make less money and turn away readers.