Earlier quoted context omitted.
Isn’t that what Google was doing?
Google is doing that (particularly with YouTube), as is everyone else. I don't think they break down the search vs. other ad business any more, but at last check it was still the biggest single source of revenue for the company (admittedly, I believe YouTube and adsense collectively generate more revenue for them now, but both of these are primarily showing ads on other people's content).
It still seems like a bit of a losing strategy as I don’t see any reason for people to stay with Yahoo.