It depends on the amount of money you want to make.
If you just want to make a few Euro, it's pretty easy. If you want to make a lot of money, you need to put a lot of work into.

But don't invest in anything.
If you need to feed a family and don't have money to lose, DON'T invest. It's like gambling. If you can't afford to lose it, don't do it.
Also be careful of guys, who promise you a lot of money for doing nearly no work. That's not going to work, mostly they want to scam you.

For myself, I started to blog about making money online. I just got started, but I already earn some euro per day with a few online sites. It's a bad payment for each hour, but you have to get started somewhere.