LinkedIn is a professional networking platform founded in 2002 by Reid Hoffman, Allen Blue, Konstantin Guericke, Eric Ly, and Jean-Luc Vaillant. Launched in 2003, it connects professionals for networking, job searching, and career development. LinkedIn allows users to create profiles, share resumes, and connect with colleagues and industry peers. It quickly grew in popularity, reaching 500,000 members by 2004. Microsoft acquired LinkedIn in 2016 for $26.2 billion. Today, it boasts over 700 million users worldwide, serving as a crucial tool for recruiters, job seekers, and professionals seeking to expand their networks and showcase their expertise.