Six Career-Killing Facebook Mistakes

SF Gate -- With more than 400 million active visitors, Facebook is arguably the most popular social networking site out there. And while the site is known for the casual social aspect, many users also use it as a professional networking tool. With that kind of reach, Facebook can be a valuable tool for connecting to former and current colleagues, clients and potential employers. In fact, surveys suggest that approximately 30% of employers are using Facebook to screen potential employees – even more than those who check LinkedIn, a strictly professional social networking site. Don't make these Facebook faux-pas – they might cost you a great opportunity.