Social Media and email company founder and history

                                    Social Media and email company founder and history                                      

Hotmail!

launched on July 4, 1996

Founders:Sabeer Bhatia and Jack Smith,

Yahoo!

CEO: Marissa Mayer.

Founders: Jerry Yang, David Filo.

Founded: January 1994, Santa Clara, California, United States

LinkedIn Corporation

CEO: Jeff Weiner

Founded: May 5, 2003

Founders: Reid Hoffman, Konstantin Guericke, Jean-Luc Vaillant, Allen Blue, Eric Ly

Twitter Inc.

CEO: Dick Costolo

Founded: March 21, 2006, San Francisco, California, United States

Headquarters: San Francisco, CA, United States of America

Founders: Evan Williams, Noah Glass, Jack Dorsey, Biz Stone

Facebook, Inc.

Founded: February 4, 2004, Cambridge, Massachusetts, United States.

CEO: Mark Zuckerberg

Founders: Mark Zuckerberg, Dustin Moskovitz, Eduardo Saverin, Andrew McCollum, Chris Hughes