Similar to Google Adsense, Bidvertiser displays only contextual advertisements depending upon the content on your site. They make it easy for subscribers to customize the layout of the ads with simple point and click tools. With Bidvertiser, website owners have the ability to automatically sell their ad space to the highest bidder. You get paid every time a visitor clicks on an ad and if the click turns into conversion, you get additional revenue. However, unless yours is a high traffic blog, you are not likely to see significant earnings.