The Yahoo Search Blog announced that BOSS developers can now add Yahoo Search ads in their search results. This will give developers a way to help monetize the BOSS applications they have built.
How do you get ads in your BOSS results? You have to apply for approval by one of Yahoo’s 3rd party syndication partners, Domain Development Corp (DDC). You can enroll at signup.ddc.com. This means Yahoo is not directly supporting the service or providing direct reporting, DDC will be doing that. Currently, DDC is the only one handling this for Yahoo.
Yahoo did make a point to say that this could change if and when the Yahoo-Microsoft deal works out. But until then, this is the way search ads in BOSS will be handled.