@DoRiS83 - y, this is the same thing I've struggled with.
I've tried and invested in a LOT of programs.
Here's what I've found works for me so far..
1) Fiverr - it's simple, quick and easy; believe me, I thought what you're probably thinking "it's gonna take a LOT of $5 gigs, especially when they take 20% on top of everything else!"
2) italki - no matter what language you speak, someone needs your help
3) miscellaneous freelance (eLance, Guru, Freelancer) - you know the rest that everyone tells you; there I feel like we're competing with lots of others in the same boat for those few crumbs left over
This isn't theory. It's my actual experience - I've tried affiliate marketing, network marketing, internet marketing.. on & on..
No, I can't say that I'm making bundles of money but I'm starting to develop new projects that may lead to more freedom and less trading time for $$