CPC ad networks:Easiest way to earn:

The online ad networks have become a popular way to make some money online.It is easy to earn, process is transparent and most important is that you can work anytime, you can work for the time you can give.It is all related with the advertising on internet
You might have came across the "Ads by -----" buttons on different websites when you surf the internet.The different programs like Google Adsense, Bidvertiser, Adbrite etc. act as the link between the Advertisers and Publishers.All you need is a website/blog to publish the advertisements.
(If you don't have one,you can create a free blog and start).
Once you have a website/blog ready with you, just sign up for any of the programs listed above. You have to publish the Ads on your website/blog and you will start earning per click depending upon the topic of your blog (content of your website/blog).
So............ be ready! And once you own your website/blog, just keep reading this blog for earning more and more.