In 2010, Yahoo and Microsoft had made an agreement that allowed the first to display search results from Bing. This agreement is no longer exclusive. Yahoo Search will display search results from Google's engine!
Back in July, Yahoo has begun to show ads from search results of Google.
The agreement provides that Yahoo may promote to Google, any number of searches, that introduced in Yahoo Search. At the same time, it can display search results and ads from Google. As the agreement is not exclusive, Yahoo will display results from Microsoft's Bing too.
This shows that it is important for your website to meet the requirements of all search engines. In Trabica we optimize our websites to be friendly for all search engines, so your website can reach the top! Learn more about our SEO service .