This site is a blog.
With blogs you can earn money. Fact.
Making one that is interesting for people is key. SO, find something you are interested in or could be very informative to people.
But how can I make money by writing about something I like?
Well, you could use advertisements, like the ones on this very page.
Most common advertisers are google. They organise all the ads so that they are relevent to your site. And, some people earn LOADS.
I have heard rumours of people earning up to $30,000 a month!
I know what you're thinking. WOW.
But, not everyone can do this.
Your blog has to be VERY popular.
For example. This blog has earned me a grand total of... $0.00
Ah well, atleast I am talking about a topic I like (MONEY!) and I am glad people are reading what took me a long time to write and research.
Good luck!
And Happy Blogging!