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?
While every affiliate program is different, you are less likely to be hit by a ban hammer in the affiliate space than in the Adsense space.  In general, affiliate networks can be a bit more lenient with their terms of services. You also have the benefit that many networks are hosting the same offers, so if one does ban you, you can usually replace that income with the new network offer.
Again, the only constant in the online business world is changing. With every change, comes drawbacks and opportunities. In order to see these, you need to take a step back to look at the big picture. Every year or two there is a major shakeup in the online space, here is a list of just a FEW changes that had entrepreneurs grumbling in the last few years:

You understand that we may at any time (directly or indirectly) solicit FatCow relationships on terms that may differ from those contained in this Agreement. We may also solicit relationships with entities that operate websites that are similar to or compete with your Affiliate Site. You have independently evaluated the desirability of participating in the FatCow Affiliate Program and are not relying on any representation, guarantee, or statement other than as set forth in this Agreement
There’s no getting around it, making less money directly translates into a less valuable business. The valuations will go down, in some cases quite significantly as is the case for technology sites earning all their revenue from the Amazon Associates program. Again this clearly depends on the category of the site – some sites might see a slight increase in their earnings, but those are definitely in the minority.
What initially attracted me to using Amazon’s Affiliate program was the breadth of products that they had in their system. This is a great thing if you’re niche is narrow or quite obscure as many bloggers find it difficult to find affiliate programs to match their blog’s focus. Blogs like John’s and mine here at ProBlogger do have an array of options for affiliate programs (which is why I don’t use it a lot on this blog and make most of my earnings from Amazon from product related blogs) but many bloggers don’t have the luxury of being able to choose high paying affiliate programs because they simply don’t relate to our topics. Amazon then becomes one of the more attractive options.
To make this type of business a success, you do need to plan it. You can't just pick any niche. If you pick a niche but the people in that niche aren't big on purchasing things, then your business won't succeed. You have to really research the niche you are interested in to make sure the people in your niche are looking and willing to purchase the products you recommend. Also, you need to plan and research the products you recommend. Don't just recommend any product that you find. It needs to be of high quality. If you recommend poor quality products, your readers will stop listening to your recommendations. 

3. You may use the Amazon Marks solely for the purpose specifically authorized under the Program Documents. You may not use or display the Marks (i) in any manner that implies sponsorship or endorsement by us; (ii) to disparage us, our products or services; (iii) in a way that may, at our discretion, diminish or otherwise damage our goodwill in the Amazon Marks; or (iv) in offline material or email (e.g., in any printed material, mailing, SMS, MMS, attachment to email, or other document, or any oral solicitation).
I am glad you asked, because just like you I am also constantly on the hunt to find information online. Have you found yourself browsing online continuously looking for information? I must admit I am, and I found that there are many different types of Affiliate Marketing Programs. It can be directly from the vendor or product owners and it can also be part of a network.
(c) Influencer Content and Site. For avoidance of doubt, you acknowledge that Influencer Content you submit will be subject to the provisions of the Conditions of Use on the relevant Amazon Site relating to posting content or submitting material and that your Site is subject to the requirements of Section 3(b) of the Participation Requirements relating to compliance with all applicable laws (for example, if applicable, the US FTC Guides Concerning Use of Endorsement and Testimonials in Advertising).
This Local Associates Policy applies to any registered business that offers face-to-face customer experiences and that facilitates customer purchases on Amazon.com (“Local Associates Program”) operated by an Associate in one or more of its owned or operated facilities registered on the program portal at https://affiliate-program.amazon.com/local Associates Site (such portal, the “Local Associates Portal” and such facilities, the “Local Associates Facilities”). In order to participate in the Local Associates Program you must (A) be an owner or authorized employee of a registered business, (B) apply through the Local Associates Portal, (C) have your application accepted by Amazon, (D) not be also registered for the Amazon Associates Program, and (E) comply with the applicable provisions of the Associates Program Operating Agreement, including this Local Associates Policy.
SEO: getting consistent traffic by writing AWESOME content about your keywords (there’s a phrase “length is strength” in SEO and this paid off big time for me). Maybe you’re doing videos or an eCourse, but I found blog posts WAY easier to update which means less maintenance. The biggest factor by FAR was the time I spent meticulously creating my tutorials… which eventually resulted in a sudden 3x increase in SEO traffic
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