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.
Market your course: The beauty of using a course to make money online is that you can continue to sell it for as long as you’d like. Look for niche communities on Facebook, LinkedIn, or Reddit that might benefit from your content. Guest post on relevant blogs and sites. Look for anywhere you might be able to get in front of the right people. With just a few hours a month you can continue to generate sales.
Also I would like to add a new one for your paid to post blogging section. Blogvertise has been my favorite place to get offers. If someone wants one done for $5 and you would like $10, you can request that and in most cases, they will accept the offer providing you include 2 links in your post back to them and write at least 300 words. Some require PR1 and higher blogs but to join you don’t have to have any(I have one blog with a PR1 and one with a 0 listed and both get work every month)
You can promote your own business or skills on social media, on your own website, on forums, with YouTube videos, and even with super-targeted pay-per-action advertising. What I mean by pay-per-action advertising is, when you advertise on the internet, you can usually target it to a point where you only pay if somebody clicks into your website or even if they make a purchase. As an affiliate marketer, most of my clients only have to pay me if I drive a sale to them. You can leverage that.