AOL and Bing

Microsoft has officially added AOL to its list of company that use its Bing engine to power its search features on both its web and mobile properties. The agreement was first announced in 2015 but officially went live on January 1, 2016.

Microsoft says:

All major Bing Ads ad products are enabled for AOL search traffic worldwide to provide marketers with additional high-quality volume and ways to reach their desired audience. Our partnership with AOL brings additional scale and opportunity to advertisers and marketers. Today, 1 in 5 searches happen on, and by providing Bing search results for the number 3 (Yahoo) and 5 (AOL) search providers in the US, Bing powers close to one-third of US PC web searches.

In 2015, Microsoft and Yahoo signed off on a revised search contract, which allows Yahoo to use Bing for 51% of its search results, rather than 100%.

Source: Microsoft