What is "yahoo!"

n. A popular web portal located at http://www.yahoo.com.

Yahoo Inc. (also known simply as Yahoo!, styled as YAHOO!) is an American multinational technology company headquartered in Sunnyvale, California. Yahoo was founded by Jerry Yang and David Filo in January 1994 and was incorporated on March 2, 1995. Yahoo was one of the pioneers of the early internet era in the 1990s. Marissa Mayer, a former Google executive, serves as CEO and President of the company.

It is globally known for its Web portal, search engine Yahoo! Search, and related services, including Yahoo! Directory, Yahoo! Mail, Yahoo! News, Yahoo! Finance, Yahoo! Groups, Yahoo! Answers, advertising, online mapping, video sharing, fantasy sports, and its social media website. It is one of the most popular sites in the United States. According to third-party web analytics providers, Alexa and SimilarWeb, Yahoo! is the highest-read news and media website, with over 7 billion views per month, being the fourth most visited website globally, as of June 2015. 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".

Once the most popular website in the U.S., Yahoo started to slowly decline since the late 2000s, and on July 25, 2016 Verizon Communications announced its intent to acquire Yahoo's internet business for US$4.8 billion — the company was once worth over US$100 billion. Its 15% stake in Alibaba Group and 35.5% stake in Yahoo! Japan will remain intact.