Wealthy Affiliate has existed since 2005, so they’ve been around for a long time. However, they have never once increased their price, even though every year they add new features. Wealthy Affiliate has never been as helpful or advanced as it is today, and the “help and be helped” community has never been bigger. If you’ve been putting off joining Wealthy Affiliate, now is the absolute best time to join the community.
Mechanical Turk: Amazon's Mechanical Turk is a resource for doing human-intelligence tasks, or as the site commonly refers to them, HITs. You get paid a very small fee for any given HIT and you'll need a good deal of volume to make a substantial amount of money. But it is a resource you can use in your spare time to generate a small income online. 
If you have a propensity for writing and you can slay with your prose, consider writing an ebook. While the market has certainly become saturated as of late, books that help teach people about a technical topic still sell extremely well. This is a great source of passive income but does require a large amount of effort at the outset before any money is generated.

Mechanical Turk is Amazon's take on micro-jobs. These are small miniscule-jobs that you can do for other people, which they call HITs, or Human Intelligence Tasks. These are super simple tasks that anyone can do. Some examples are listing off some URLs with certain kinds of images for one cent, or recording a few phrases with a microphone for 6 cents.
So, now that you know everything there is to know about how to add Amazon affiliate links to WordPress, what will you do with this information? Just save a little money on Amazon? Will you start out small and embed promotional product links into your blog content? Will you be adventurous and launch your own Amazon affiliate store? Or are you concerned about the use of too many affiliate links affecting site speed?