Which professional networking site was founded by Reid Hoffman in 2002? LinkedIn.
LinkedIn was founded in December 2002 by Reid Hoffman and a team that included early members from PayPal and SocialNet.com. The professional networking service officially launched on May 5, 2003, from Mountain View, California. Its central idea was to bring the logic of professional contacts online, allowing users to maintain career profiles and connect with colleagues, employers, and clients.
Early growth was gradual. LinkedIn reached one million users in August 2004 and became profitable in March 2006. Unlike general social networks, its design focused on employment, business identity, recruiting, recommendations, and professional relationships. That focus helped it become a major destination for job listings and career development.
Reid Hoffman is commonly identified as LinkedIn’s founder, although the company was built with several co-founders and founding team members, including Eric Ly. This does not make the quiz answer wrong: the question asks which site Hoffman founded, not whether he founded it alone. Microsoft acquired LinkedIn in 2016.