List of websites where advertisers and publishers(webmasters) can signup and automatically buy/sell banner and text ads.

https://buysellads.com/ - banners, im making money with them and they pay
http://www.magenet.com/ - best automated text link selling/buying marketplace i found, they paying
http://www.adsella.com/ - work too, im getting payments
https://www.adengage.com/ - growing network
http://adonion.com/
http://www.projectwonderful.com/ - may give it a try
http://www.linkworth.com/
http://puxee.com/
http://web.blogads.com/
http://advertiise.com/index.php/faq/
http://www.juicyads.com/ - adult network

https://www.matomyseo.com/publisher ?

Do you know more sites? please kindly share so we can enjoy most complete list here. Thank you