Earning Money from internet is not so easy in the earliest but when google introduces Adsense, most of them started blogging to share their knowledge with other as well as to earn money either from Google adsense or other ad networks like Adbrite, Bidvertiser, etc.
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To do this just follow the below procedure to obtain it.....
1.Go to your Ads Network site and Get your Ads Unit Code.
2.Now Go to Parse HTML and paste your Ads Unit code and then click on Parse Button.
3.After parsing the code get the new code from the site which is converted your ads unit script code to HTML Code.
4.Login your Blogger.com and go to Layout -> Edit Html
5.Click on Expand Widgets
6.Now paste your Ads Unit code below to data post body .
Now You Can see your Other Ads Network ads between your blog posts.