CaptJade no you do not have to post 200 blogs to make money online, I have one blog that I'm making money with, what you could is start with affiliate marketing promoting other people's products for money.
I truly believe that running a few quality sites is better than running a large quantity of mediocre sites. There is no way one person can have 200 different blogs with high quality content. I have a friend who runs a fairly large tech blog and it took that blog six years to get to where it is today. It makes very good money but it is a lot of work.
Blogging today is a lost art. As soon as someone learns about how much money a big blog makes, they slap together a lousy Wordpress blog with shoddy content and stick Adsense on there. This is not how a successful blog is built.
You need to understand your audience and give them relevant content. You need to offer quality over quantity when it comes to blogging.