LinkedIn founded on 2002 by Reid Hoffman, Konstantin Guericke, Jean-Luc Vaillant, Allen Blue and Eric Ly launched on May 5, 2003 is an American business and employment oriented online service. What is LinkedIn and why is it so much popular? It is a social media platform but unlike other platforms it is much more geared to professionals. It not only helps you to expand your network and to build your professional portfolio, but one can also search for new jobs or they can even ask their connections for endorsements and recommendations. It is the world's largest professional network on the internet and you can use it for sharing your experience to others or you can also learn various things from there by reading posts or articles. LinkedIn is free, but a subscription version called LinkedIn Premium offers additional features like online classes and seminars, as well as insights into who's searching for and viewing your profile Perks of using Linked