Google Ad Manager is now open to public. Anyone who has Google Account can login and start managing their advertisements.
Google Ad Manager is a hosted ad management solution that can help you sell, schedule, deliver, and measure all of your directly-sold and network-based inventory.

I have always used phpAdsNew (now OpenX) for managing my ads. Compared to Google Ad Manager, I found OpenX to be much more user friendly (or is it just because I have been using it for a long long time?).
Again Google wins…
Basically besides being the No.1 search engine on the net, Google is an ad-network too — with its Google AdSense on one side and Google AdWords on the other. So, what does that say about this new ad-network platform — Google Ad Manager — that Google introduced?
OpenX has a good answer to that on their blog, below is the excerpt from their article:
Google is Your Biggest Competitor
By allowing Google Ad Manager to serve all ads on your site, you are reducing your ability to get advertising elsewhere. Because Google could ‘cherry pick’ users that are the most lucrative for Ad Sense, they will leave the other users for your remaining advertisers. Therefore, your advertisers will not get as much ROI, and leave you for another website.The same theory goes for ad networks. If ad networks do not have access to your most lucrative users, then they will not pay you as much for them.
Google’s Margins will Increase, Not Yours
By allowing Google to serve your ads, you allow your biggest competitor for ad revenue to know how much you make from ALL advertising on your website.Therefore, if your average CPM from Google is $0.75, and your average CPM from other ad networks is $0.50, there is no reason that Google should give you more than $0.51! Remember, it is up to Google to determine what revenue share that they will pass back to websites. source
I think that’s a huge plus for Google and very very big minus for all the other ad-networks.



I am currently testing this out. Should yield some interesting results!
The way you make it sound makes me think its not as great an idea as it seems.
So how does this work? Does it help you make money from a blog?
It helps you to manage your advertisements. You can make money with AdSense, since it supports running adsense ads too.
i wonder if this limits you not to use other competing advertising program
I am using the manager, seems very good.
Does it mean that You are not use it and still using phpAdsNew for your direct ad management?
I just downloaded Google’s Adwords Editor. Adwords Editor with Google Ad Manager makes controlling ads easier on the advertiser and publisher end. This is a huge step forward for Google.
The Google interface looks good and has some strengths. It makes sense for someone like myself to use these tools as it ties in with out Adwords Campaign. Let see what happens.
yes I still use OpenX
I’ve been using the ad manager. I haven’t had any problems with it so far.
Hi Ades,
Thought you’d like to know that we just launched OpenX Hosted. Now you can use OpenX without maintaining an ad server.
We’ve done more work to make the UI better and OpenX Hosted gives you access to the new market pilot programme.
cheers,
Oliver from OpenX
New OpenX hosted version.
http://crenk.com/openx-launch-their-own-hosted-advertising-server-which-im-sure-is-the-best/
Nice article Steven.
Thanks!