by Laurie Sullivan
Google has partnered with Yandex, Russia's largest search engine, in a deal that will allow the two companies to open and share inventory across their advertising display networks. It makes the entire network of ad inventory available to both company's advertisers.
Source: http://www.mediapost.com/publications/article/220326/yandex-google-partner-in-rtb-display-ad-deal.html?edition=70297