Yahoo! Inc. (NASDAQ: YHOO) is an American multinational internet corporation headquartered in Sunnyvale, California, United States. The company is best known for its web portal, search engine (Yahoo! Search), Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo! Finance, Yahoo! Groups, Yahoo! Answers, advertising, online mapping, video sharing, fantasy sports and social media website and services. It is one of the largest websites in the United States.According to news sources, roughly 700 million people visit Yahoo! websites every month.Yahoo! itself claims it attracts "more than half a billion consumers every month in more than 30 languages."

 

Yahoo! Inc. was founded by Jerry Yang and David Filo in January 1994 and was incorporated on March 1, 1995. On July 16, 2012, former Google executive, Marissa Mayer, was named as Yahoo! CEO and President, effective July 17.Yahoo! has averaged one CEO a year for the last five years.