As I see, there are many adservers on the Internet. But just some of them have ads banners from real advertisers. Many sites like makingmoney123, zenoviaexchange, cpmfun, etc. they have many ads banner from TRAVIAN GAME, ACCESSFACEBOOK, VIVID player, Download, etc... (just these common kind).So now, if I open an adserver, how can I have those banners for publishers?
Hm. You can create nice platform and then advertisers will work with you. You have to get some attention.
You need to go to those companies and persuade them to buy your ad spaces Sites like makingmoney123, zenoviaexchange, cpmfun, etc they are just intermediaries (if I use the word correctly) and the ads are actually from large adservers like AdNetwork, Adsense,... Another option is to become partner with some ad providers like danariMedia.com. They offer XML feeds which contain ad information. Adservers have to parse the XML data and display ads on publishers' websites. That's just something I know. Hope it will help
If you know any advertising network that offers XML ads data, you should try contacting them. Just tell them everything about you and let them decide
OpenX Source is a free, open-source ad server that is a completely different product from OpenX Enterprise. It does not include any support or maintenance, and you are responsible for all hosting, bandwidth, and security costs.