The document discusses five case studies of people who lost their jobs due to content they posted on Facebook. The cases include an insurance worker who was fired for surfing Facebook while calling in sick, 13 airline workers fired for inappropriate comments about passengers, a teenage employee fired for saying her job was boring on Facebook, a teacher fired for racist comments about students, and an after-school staffer fired for offensive posts. The document concludes with five Facebook commandments for keeping your job, such as not posting embarrassing details or negative content.