Don't sacrifice morals for a quick buck — At the outset, you'll want to do all sorts of things to make money online, but don't sacrifice your morals for a quick buck. Not only will you put people off, but you'll lose Google's trust. You also shouldn't concern yourself with things like Adsense or other ads on a blog before you have around 100,000 visitors per day. Yes, per day. 
A niche affiliate site often presents like an eCommerce store. To get started with an affiliate site, choose your niche then display products with pictures, descriptions, and prices, just as you would on an online store. However, when visitors click the ‘buy’ button, they will be taken directly to Amazon, to make the purchase. You then make an affiliate fee for sending the traffic to Amazon, but have none of the packaging hassle, or initial financial output creating or buying the products.
Another thing to consider is that even if you break even on the first sale, you're still winning. All you need to do is create more content about other problems that target market may have following the same principle and queue them one after the other. For example if we target women that want to lose weight they may also have wrinkle problems, digestion problems, diabetes, aging problems etc. We can easily create a chain of issues we run the email list through, let them opt in for what matches their issues and make several sales to that audience.
people who visited the site but did not opt in > you can use negative audiences for your ads with facebook ads, you just take visitors to the site and substract the people that visited the thank you page. For people who did not purchase, you simply can't with affiliate marketing unless the vendor adds a conversion pixel of yours on their thank you page.

Will my target audience realistically buy this now, or at a different time? Be sensitive to sales cycles and seasons. Maybe you should avoid holidays (when people are away from their computers, like July 4 in the U.S.) or maybe you should target holidays (like the day after Thanksgiving), but know the difference. Again, know your audience. Plan your content accordingly.
Affiliate marketing has increased in prominence with the internet age. Amazon popularized the practice by creating an affiliate marketing program where websites and bloggers put links to the Amazon page for a product being reviewed or discussed in order to receive advertising fees when a purchase is made. In this sense, affiliate marketing is essentially a pay for performance marketing program where the act of selling a consumer on a product is outsourced across a potentially vast network.
Good point about reviewing online courses before you promote them to protect your reputation. However, I would like to point out that the level of attention the course creator gives you (the endorser) and what they give to a random customer might be very different. There are so called marketing gurus out there who are extremely skilled at making false promises and not delivering on them. Once they have the endorsement of a few reputed marketers and some ‘lucky’ customers, they can easily get away with ripping other people off with hyped up money making guarantees. I have had a personal experience with this as a customer, but lets not mention names! The point is, when we are promoting someone, we need to do an in-depth due diligence. Only going through their course is not enough. It would be great if there was some kind of a course review site -something like tripadvisor. This is something that the industry really needs – something to make people accountable. A lot of people are losing faith in these online courses. I am staying away from promoting people unless I am very certain of their integrity.
Medium is an online community where anyone can post articles and essays and get them in front of their audience of millions of monthly readers. While it can be a great place to build your audience for your own blog or find customers for your consulting business, with Medium’s new Partner Program, you can now make money online whenever someone reads your articles. Register for free and you can choose whether your articles are freely available or only readable by those people paying $5/month for a premium Medium membership. You’ll make money based on the amount of people who read and engage with your posts each month.
×