Google AdSense

Google AdSense is the program that can
give you advertising revenue from each
page on your website/blog with a minimal
investment in time and no additional
resources.You can maximize your revenue
potential by displaying Google ads on your
website. Google puts relevant CPC (cost-per-
-click) and CPM (cost per thousand impressions)
ads through the same auction, and lets them
compete against one another.And you can use
AdSense in many languages.

Update:
2007/1/5

Oh God.Adsense on some of my blogs never get
any click.But this blog is better.

MyDay.lk is a nice blogging site.There are about
2500 members.

Update:
2007/1/6

Hay!
Adsense is not the only one solution.there
are lot of other nice ppc programs.Like
Chitika,Kontera,ClickBank,Adbrite.
These days I'm testing them.Soon I will
will teach you how to start those ppc
programs.Wait......