When someone purchases the product through your link you get some of the money. So say you have a blog about losing weight. You would promote a website that sells weight loss pills. When someone buys a supply of weight loss pills for something like $27 you will get a percentage of that, which will be something like $15.

So everytime someone buys some weight loss pills you get money. The more people that visit your site, the more people will buy the product and the more money you will make.

You can also earn money with Google Adsense. You get paid everytime someone clicks on your ad. You cna get anywhere from $.02 per click to $15 per click. It all depends on the topic of your blog.

These are just a couple of the ways you can make money with blogging.

If you want more information about earning money through blogging check out
http://atomic–blogging.blogspot.com/