When I started blogging, I also immediately monetize my blog. Its not the money that motivates me to put ads. Monetizing a new blog means not having to bother with redesigning it later to accommodate the banner ads and other forms of moneymaking strategies that may affect the overall look and feel of my blog when traffic started pouring in. Though it is a risky move, it can pay off later on as you are introducing your blog to the world already monetized. This way, readers will not be surprised or upset that you have added some forms of advertising to your blog later on down the road.
---excerpt from a post in my blogSo, you want to start blogging? Good for you. But first you need to choose what blogging platform you are most comfortable to use with. Screw the niche, you will find your own down the line when you are already blogging.
How to monetize? Well you need to sign up as a publisher for an ad server sites like google adsense. You can also try nuffnang which you need to be an exclusive member for you get ads. Another alternative is innity, but they have a rather high requirements in terms of unique visits monthly. If you are into bitcoin or any crypto blogging, you may want to sign up at adbit or any other bitcoin related ad server.
I don't know if this is the right forum to ask such, but I did tried to answer your querries anyway.