Social networking can be an effective tool for job seekers. Over 90% of companies use social media like LinkedIn and Facebook to find candidates, and over half have successfully hired someone through these sites. It is important for job seekers to establish an online presence on major sites like LinkedIn and Facebook, keep their profiles up to date, join relevant groups, build their professional network, and engage with contacts. However, social media profiles should be professional and free of content that could reflect poorly on the job seeker. Maintaining an online reputation is important as many recruiters research candidates online.