DoubleClick for Publishers - Grow revenue wherever your users are with an integrated ad management platform that surfaces insights for smarter business decisions.
Revive Adserver - The free open source ad server formerly known as OpenX Source
AdHitz - Lets you sell ad space on your site. You choose the details and then paste the code to your site.
ReviveAdserverMod - Choose from over 350+ Revive Adserver plugins and modules across various functionalities for mobile, video, display, targeting, reporting, integration, billing and many more
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.
AdGlare - AdGlare is a scalable Ad Server in the cloud, both for Publishers and Advertisers.