If you're a publisher who sells advertising space directly to advertisers, Google Ad Manager can help you learn what you have available to sell by forecasting your future inventory and subtracting off what you've already sold.
Google rolled out major improvements to forecasting system. It's now up to ten times faster, and it uses much more historical data, so you get more accurate estimates of future availability. The new system allows us to quickly add new features in the future. Forecasts now take account of frequency caps, meaning that the availability estimates are modified to account for the fact that you might only want to show an ad once to each user.
Forecasting also continues to be a major development focus of our DART for Publishers (DFP) ad serving platform for publishers with larger direct sales teams, part of the DoubleClick Revenue Center suite of publisher solutions. Google Ad Manager serves as an effective complement to DFP and the DoubleClick Revenue Center to provide solutions for publishers of all sizes.