We often get asked if we handle advertising on other search platforms besides Google and Bing. We do not. The truth is that Google and Bing dominate the search market in the United States, and even that's not completely telling: Google's hold on search is pretty dominant, with a 81.12% global share of the desktop search market and a whopping 96.38% share of all mobile search.
We place ads on Bing Ads because it's the second largest platform, and has a decent showing on mobile. But, we don't believe—at this time—it's the best strategy to split ad dollars among the remaining platforms with such a small stake in search, such as Yahoo Search, Ask.com, or AOL.com