Bing (search engine) jointly release "Firefox with Bing", an edition of Firefox where Bing has replaced Google as the default search engine. The standard edition of Firefox has Google as its default search engine, but has included Bing in its list of search providers since Firefox version 4.0. In addition, Microsoft paid Verizon Wireless $550 million USD to use Bing as the default search provider on Verizon's BlackBerry and have Verizon "turn off" (via BlackBerry service books) the other search providers available. Users could still access other search engines via the mobile browser. In 2012, a Bing marketing campaign asked the public which
Web search engine it gives back. While there may be millions of web pages that include a particular word or phrase, some pages may be more relevant, popular, or authoritative than others. Most search engines employ methods to rank the results to provide the "best" results first. How a search engine decides which pages are the best matches, and what order the results should be shown in, varies widely from one engine to another. The methods also change over time as Internet usage changes and new techniques evolve. There are two main types of search engine that have evolved: one is a system