[whimsicalism]

> selling Bing search ads on Yahoo ad exchange. Didn't work well and can't scale it.

I don't see your point. There are millions of ads currently sold on existing exchanges by third parties, why are you claiming it can't scale?

> Is it fair to ask some other ad exchanges to run ads on NYTimes or CNN, Fox news?

I don't understand your point. None of those news organizations operate an ads exchange.