AdHitz - Lets you sell ad space on your site. You choose the details and then paste the code to your site.
AdSense - Earn money with website monetization from Google AdSense. We'll optimize your ad sizes to give them more chance to be seen and clicked.
Kevel - Kevel's APIs make it easy for engineers and PMs to quickly launch a fully-customized, white-labeled, server-side ad server.
Epom - An ad serving solution for publishers, advertisers, ad and affiliate networks
Media.net - Yahoo! Bing Network Contextual Ads powered by Media. net gives you instantaneous access to one of the world's largest marketplaces for advertisers. People also askWhat is Media Net?What is Medianet Cisco?
Revive Adserver - The free open source ad server formerly known as OpenX Source