Hi zogo,
There are two major ways to make money
through google.
Google Adwords and Google Adsense.
Adsense refers to streaming ads google
provide for you on your site like the ones
you can see on this site.
You get paid everytime those ads gets
clicked.
Since you don't have a website, you cannot
do adsense.
As per adwords, they are the small ads coloured
blue you see on the right side of google searches.
For example, if you search for the term "web
hosting" you will get two sets of result.
The major one on the left and the ones on the
right.
You can place those ads to promote affiliate
products so you get paid for every sale you make.
Please note that you pay google everytime
your ad gets clicked. But you will be the one to
set how much you want to be paying.
I never advise anyone to do adwords without
a website. I'll prefer a situation where you'll
have at least a squeeze page where you'll
direct your traffic to before sending them to
your affiliate offers.
That way, you will be building your opt in list
you can market to over and over again.
I wish you all the best.
Akin Alabi
http://www.ecashnigeria.com