According to Wikipedia:
Google AdSense is a program run by Google that allows publishers in the Google Network of content sites to serve automatic text, image, video, or interactive media advertisements that are targeted to site content and audience.
In other words, if you have a blog you can post Google Adsense ads on your blog and make money each and every time someone clicks on one of the ads.
This is yet another proven way to make money blogging sell and publish ad space.
The challenge is you will not make a lot of money with Google Adsense or by selling ad space unless and until your new blog starts getting a lot of traffic. And we're not talking about a few dozen visits per day. We are talking about hundreds, thousands, even tens of thousands of hits per day to make a significant income.
Why? Because you are getting paid PENNIES per click not dollars and that THE DIFFERENCE that makes all the difference.
Lesson up…
If you are serious about making a significant income blogging…
You should focus the majority of your time and effort promoting products and services that pay a monthly commission. a high-dollar commission or a combination of both.
After all, it takes just as much time and effort to write and promote a blog post that promotes a product that pays you $1.00 per sale as it does to promote a product that pays you $10 or more per month per sale.
Make sense?
Another thing you want to do to put the odds of success in your favor is to pick a target market first before you set up your first blog.
Know the WHO you want to market to, research that market to determine what they are HUNGRY to buy… and then make it easy for them to buy from your affiliate link!
For example, let's say you have a passion for golfing and you, personally, spend a lot of money on golf equipment and things like that.
So it makes sense that other golfers also tend to spend a lot of money on their hobby as well. So GOLFERS would be your target market.