Glassdoor is a job and recruiting sites that operates online jobs and career community. It helps employees, job seekers, employers, and recruiters in finding and sharing information about the companies and jobs that include company reviews, interview questions and reviews, office photos, salary details, and information to make career decisions. Rich Barton, Robert Hohman, and Tim Besse founded June 2007, with its headquarters in Mill Valley in California. Glassdoor operates worldwide.