Sorry for the lack of posts, I've been busy learning more about affiliate marketing, which has turned out to be one of the best things I've done so far.
If you are also interested in giving affiliate marketing a try, here are some tips on how to do that in the best way:
How to choose a niche
Like with everything else that involves making money long term, I think the best thing is to choose a niche that is profitable and that you feel passionate about. A great way to check what people are looking for is to use the Google Keyword Tool, but don't just base your decision on the keywords you find, instead, make sure there are great affiliate deals out there for the products you find too.
Work with different projects
By this I mean you should have at least a few different websites, blogs or whatever you decide to put your affiliate ads on. This is important both because you should never put all your eggs in the same basket, in case the basket breaks, but also because it will make it easier to see what the most profitable way of working is. So I personally have tried many different products and niches lately, in order to see what works best. (So far it's travel!)
Learn SEO in order to help people find your projects
This is really a must, since it makes a huge difference. So if you only take one of my tips to heart, let is be this one: Learn at least the basics of SEO in order to get A LOT further with your earnings. It's actually kind of fun once you get started!
Make a plan
You need to work on your affiliate projects on a regular basis, since few of them take off immediately. So make a plan that enables you to do just that, because the most common reason people fail with affiliate marketing is that they simply do not keep it up for long enough and give up too soon when the earnings don't come immediately.
I'm still kind of new to affiliate marketing, so it is possible I will have more tips to share further on, but so far, these are the things that have helped me succeed the most.