Google Ad Manager is a new solution to have your ads hosted; itâ€™s very similar to OpenX, formally known as OpenAds and before that PhpAdsNew before their second round of funding this year.
I love OpenX, knowing that itâ€™s running on my server and I have complete control of it. I donâ€™t see me changing anytime soon. Plus right now Google already knows enough about my sites, do they really need to know if I am selling paid links on my site? Thanks but no thanks!
I will stick with OpenX!
But, if you didnâ€™t get an invite and you want to possibly get one, you can go here and apply.