The Mozilla Corporation's relationship with Google has been noted in the popular press, especially with regard to their paid referral agreement. Mozilla's original deal with Google to have Google Search as the default web search engine in the browser expired in 2011, but a new deal was struck, where Google agreed to pay Mozilla just under a billion dollars over three years in exchange for keeping Google as its default search engine. The price was driven up due to aggressive bidding from Microsoft's Bing and Yahoo!'s presence in the auction as well. Despite the deal, Mozilla Firefox maintains relationships with Bing, Yahoo!, Yandex, Baidu, Amazon.com and eBay.