Yahoo! Inc. (NASDAQ The NASDAQ Stock Market, known as NASDAQ, is an American stock exchange. The full form is National Association of Securities and Dealers Automated Quotation. It is the largest electronic screen-based equity securities trading market in the United States. With approximately 3,700 companies and corporations, it has more trading volume than any other: YHOO) is an American public A public company or publicly traded company is a company that has permission to offer its registered securities for sale to the general public, typically through a stock exchange, or occasionally a company whose stock is traded over the counter (OTC) via market makers who use non-exchange quotation services corporation A corporation is an institution that is granted a charter recognizing it as a separate legal entity having its own rights, privileges, and liabilities distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business headquartered in Sunnyvale, California Sunnyvale is a city in Santa Clara County, California, United States. It is one of the major cities that make up the Silicon Valley. As of the 2000 census, the city population was 131,760, (in Silicon Valley Silicon Valley is the southern part of the San Francisco Bay Area in Northern California, United States. The term originally referred to the region's large number of silicon chip innovators and manufacturers, but eventually came to refer to all the high-tech businesses in the area; it is now generally used as a metonym for the high-tech sector), that provides Internet The Internet is a global system of interconnected computer networks that use the standard Internet Protocol Suite to serve billions of users worldwide. It is a network of networks that consists of millions of private and public, academic, business, and government networks of local to global scope that are linked by a broad array of electronic and services worldwide. The company is perhaps best known for its web portal A web portal, also known as a links page, presents information from diverse sources in a unified way. Apart from the standard search engine feature, web portals offer other services such as e-mail, news, stock prices, information, databases and entertainment. Portals provide a way for enterprises to provide a consistent look and feel with access, search engine A web search engine is a tool designed to search for information on the World Wide Web. The search results are usually presented in a list of results and are commonly called hits. The information may consist of web pages, images, information and other types of files. Some search engines also mine data available in databases or open directories (Yahoo! Search Yahoo! Search is a web search engine, owned by Yahoo! Inc. and was as of June 2009, the 2nd largest search engine on the web by query volume, at 17%, after its competitor Google at 74% and before Bing at 9.4%, according to Compete.com), Yahoo! Directory The Yahoo! Directory is a web directory which rivals the Open Directory Project in size. The directory was Yahoo!'s first offering. When Yahoo! changed to crawler-based listings for its main results in October 2002, the human-edited directory's significance dropped, but it is still being updated. The Yahoo! Directory offers two options for, Yahoo! Mail Yahoo! Mail is a free web mail provided by Yahoo!. It was inaugurated in 1997 and serves over 280 million users as of 2009. It is currently the largest web-based email service, followed closely by its competitor Windows Live Hotmail, Yahoo! News Yahoo! News is an Internet-based news aggregator provided by Yahoo!. It features Top Stories, U.S. National, World, Business, Entertainment, Science, Health, Weather, Most Popular, News Photos, Op/Ed, and Local news, advertising Advertising is a form of communication used to influence individuals to purchase products or services or support political candidates or ideas. Frequently it communicates a message that includes the name of the product or service and how that product or service could potentially benefit the consumer. Advertising often attempts to persuade, online mapping (Yahoo! Maps A new and improved Yahoo! Local Maps has been recently made available. It offers maps with significantly more interactivity for broadband users. It is written using AJAX, leveraging Rich Internet Application techniques. Some features:), video sharing (Yahoo! Video Yahoo! Video began as an internet-wide video search engine and added the ability to upload and share video clips in June 2006. A re-designed site was launched in February 2008 that changed the focus to Yahoo-hosted video only. The site now consolidates all premium video from across Yahoo! properties with user-uploaded video), and social media Social media is media designed to be disseminated through social interaction, created using highly accessible and scalable publishing techniques. Social media uses Internet and web-based technologies to transform broadcast media monologues into social media dialogues (many to many). It supports the democratization of knowledge and information, websites A website is a collection of related web pages, images, videos or other digital assets that are addressed with a common domain name or IP address in an Internet Protocol-based network. A web site is hosted on at least one web server, accessible via a network such as the Internet or a private local area network and services.

Yahoo! was founded by Jerry Yang Jerry Yang is a Chinese American entrepreneur and the co-founder, former CEO (or as he called himself, the Chief Yahoo) of Yahoo! Inc and David Filo David Filo is an American businessman and the co-founder of Yahoo! with Jerry Yang in January 1994 and was incorporated on March 1, 1995.

On January 13, 2009, Yahoo! appointed Carol Bartz Carol Ann Bartz is the President and CEO of Yahoo!, the internet services company which operates the second most visited website in the world. She was previously Chairman, President, and CEO at Autodesk, the world's largest producer of design software for use in architecture, engineering and building construction, former executive chairperson of Autodesk Autodesk, Inc. is an American multinational corporation that focuses on 2D and 3D design software for use in architecture, engineering and building construction, manufacturing, and media and entertainment. Autodesk was founded in 1982 by John Walker, a coauthor of early versions of the company's flagship CAD software product AutoCAD, and twelve, as its new chief executive officer and a member of the board of directors A board of directors is a body of elected or appointed members who jointly oversee the activities of a company or organization. The body sometimes has a different name, such as board of trustees, board of governors, board of managers, or executive board. It is often simply referred to as "the board.".^[3]

According to Web traffic analysis companies (including Compete.com Compete.com is a web traffic analysis service operating in the United States that publishes the approximate number of global visitors to the top 1,000,000 web sites in the world. This number is computed from sources including internet service providers, opt-in panels, application providers, and users of the Compete toolbar, comScore comScore is an internet marketing research company providing marketing data and services to many of the Internet's largest businesses. comScore tracks all internet data on its surveyed computers in order to study online behavior,^[4] Alexa Internet Alexa Internet, Inc. is a California based subsidiary company of Amazon.com that is known for its toolbar and website. Once installed, the toolbar collects data on browsing behavior which is transmitted to the website where it is stored and analyzed and is the basis for the company's web traffic reporting,^[5] Netcraft Netcraft is an Internet services company based in Bath, England,^[6] and Nielsen Ratings Nielsen ratings are audience measurement systems developed by Nielsen Media Research, in an effort to determine the audience size and composition of television programming in the United States. Nielsen Media Research was founded by Arthur Nielsen, who was a market analyst whose career had begun in the 1920s with brand advertising analysis and^[7]), the domain yahoo.com attracted at least 1.575 billion visitors annually by 2008.^[8] The global network of Yahoo! websites receives 3.4 billion page views per day on average as of October 2007^[update]. It is the second most visited website in the world in May 2009.^[9]

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