Microsoft Corporation (NASDAQ: MSFT) is an American multinational corporation headquartered in Redmond, Washington, United States that develops, manufactures, licenses, and supports a wide range of products and services predominantly related...

Yahoo! Inc. (NASDAQ: YHOO) is an American multinational internet corporation headquartered in Sunnyvale, California, United States. The company is perhaps best known for its web portal, search engine (Yahoo! Search), Yahoo! Directory, Yahoo!...

Apple Inc. (NASDAQ: AAPL; formerly Apple Computer, Inc.) is an American multinational corporation that designs and sells consumer electronics, computer software, and personal computers. The company’s best-known hardware products are the...

Twitter is an online social networking service and microblogging service that enables its users to send and read text-based posts of up to 140 characters, known as “tweets”. It was created in March 2006 by Jack Dorsey and launched...

Facebook is a social networking service and website launched in February 2004, operated and privately owned by Facebook Inc. As of April 2012, Facebook has more than 900 million active users. Users must register before using the site, after...

Google Inc. (NASDAQ: GOOG) is an American multinational corporation which provides Internet-related products and services, including Internet search, cloud computing, software and advertising technologies. Advertising revenues from AdWords generate...