One third of employers turn down job candidates after viewing their Facebook profiles

CareerBuilder carried out a survey and found out that 22 percent of 3,169 hiring managers are screening social networking sites to see if their prospective employees are drinking too much, doing drugs, trashing former employers, or letting out trade secrets on their profiles.

    A further 9 percent said they planned to start reviewing potential employees' social networking pages in the future.

    The survey result also revealed that while 24 percent of employers had hired a member of staff based on their social-networking profile, 33 percent had also decided not to make a job offer after reviewing the content on a profile.

    The employers were mostly interested in the candidate's backgrounds supporting their qualifications for the job.

    Use of drugs or drinking and the posting of photographs deemed "inappropriate" or "provocative" were identified as the most popular reasons causing employers to kick the candidates out of the hiring process.

    The job hunters are advised to either regularly edit their social-networking pages to ensure there is no negative content available or make them "private" to avoid would-be employers snooping at their personal life.