Allow targeting to specific search networks
Right now you can only choose either search or content network.
We do not plan any further separation of search networks at this time.
Bonzo Flabulous commented
What would be better is separating Bing and Yahoo.
In North America, you can choose Bing/Yahoo! and their owned and operated sites; only the Search Syndicated Partners; both Bing/Yahoo! O&O plus Search Syndicated partners