Blogging is one of the best way of making money online. So many people try to earn money online but its not an easy task. I am making money online from past four years and believe me making money online is not an easy task. You need to do a lot of work in order to earn regular income. Now lets come back to blogging. You can earn money by putting advertisements on your blog. These advertising networks offer different kinds of advertisements, but CPC and CPM are the two most popular kind of advertising networks. We all know that Google Adsense is the best CPC advertising network but when it comes to CPM advertisement networks there are so many choices available that you can’t pick a single CPM advertising network. In this post I am going to showcase the Top 20 highest paying CPM advertising networks for my fellow bloggers and web masters.