As a Worldwide American public corporation, Yahoo! known best as search engine, Yahoo!Mail, Yahoo! Directory, news, web portal, and social media websites. In January 1994, Jerry Yang and David Filo founded this web service and was incorporated on March 1st, 1995. According to a Compete.Com study, the... 

Google is an American public corporation which started their business in Internet search engine services. Later, they succeed to pile huge cash and spanned their business into e-mail, online mapping, office productivity, social networking, and video sharing services as well as selling advertising-free...