"Search Inside the Book" is a feature which allows customers to search for keywords in the full text of many books in the catalog.[138][139] The feature started with 120,000 titles (or 33 million pages of text) on October 23, 2003.[140] There are about 300,000 books in the program. Amazon has cooperated with around 130 publishers to allow users to perform these searches.[citation needed]
Pretty Link will help to cloak your links, so they look less spammy. For instance, if you have a link that looks like “amazon.com/product-one/76/dprertet4454354rwefsrer43545”, people are less likely to click on it. With this plugin you can transform that link into something like “yoursite.com/go/product-one”. This plugin also provides data and tracking information.
However, if you are looking to make money via Mechanical Turk, its easy to sign up and get started working.  You likely won't make a ton of money doing these simple tasks that often only pay 10 cents or so, but it could be an easy way to save up some money to start a business.  (I discussed saving up to start a business recently as a great way to go).
If you own a website, blog, or even moderate a discussion group, you have the opportunity to join the Amazon Associates program and earn revenue by directing visitors to Amazon products. Depending on the product, you'll earn anywhere from 4%–10% if the click results in a qualifying sale. It works by Amazon giving you a unique referral url that you post on your site or blog. Then when someone clicks on the embedded url, the referral is tracked, and results in you getting paid if it ends in a purchase.
One thing to remember about Amazon Flex is that you will not be considered an employee of the company, but rather an independent contractor. Thus, you will be responsible for withholding taxes on your own and will not receive any benefits from Amazon. You are also responsible for paying for gas, tolls, parking fees and wear and tear on your car. If you drive a gas-guzzler or an unreliable vehicle, this job might not be right for you.
Amazon and affiliate marketing in general is a decent way of making side income, but nothing really compares to making your own product or service that others will pay for, especially something that ppl will pay for month after month. WIth affiliate marketing, you’re basically helping retailers find lifelong customers, and you get a cut just once. Bad deal, IMO
Most of the traffic for your affiliate website will come from product related searches, and product reviews. Generally, these will be more long-tail terms such as, “Blendtec 570 vs Vitamix 5300”, or “greenworks mower vs black and decker”. The traffic coming from keywords like these will be very targeted, as the searcher has the intention to purchase something.
In the summer of 2014, I came across a few blog posts and podcast episodes focused on the topic of selling private label products through Amazon’s FBA program. I was aware of the possibility to sell private label products, and I was aware that third-party sellers could sell their products on Amazon, but I had never thought about the power that exists when these two are combined.
You wouldn’t install the same Google Analytics code on every single website you own right? Of course not, because you wouldn’t be able to tell how much traffic each of your websites were receiving individually. So the same thing can be said for tracking the money you make on your websites (and yet people still tell me they use only one Amazon tracking ID for all of their websites /facepalm). In the ,past I’ve gone so far as to create 15 different tracking ID’s for use on a single website.

Thanks for all the great info. I have had some moderate success with amazon before, but nothing of that magnitude. The best selling lists have works for me, as well as creating a ‘recommended’ list or ‘library’ full of interesting products, although I have always found its better to actually be interesting in the recommendations rather than just plugging anything.
It's easy to forget these days, but there was a time when Amazon didn't – and couldn't – promise that an order would arrive by a certain date. Mike helped change that. "We totally overhauled the way we make promises on the website," he says. "We got rid of the 'usually ships in 24 hours' messaging. We developed the capability to make these aggressive delivery estimates and keep them. In many ways, this was what Prime was born of."