Researchers warned of increase in employers checking candidates lifestyle, attitudes and even appearance in photos loaded on Facebook profiles.u00a0

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In one of the biggest ever studies of the importance of Facebook profiles among job hunters, American scientists found that employees increasingly use the social networking site to weed out unsuitable candidates, the 'Daily Mail' reported.u00a0

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"While employers are using Facebook to monitor their employees, they have also begun to use it as a screening tool when considering potential candidates," said Vanessa de la Llama of the Florida International University in North Miami.u00a0

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However, the lack of guidelines means many firms simply follow their own judgement of just how bad your Facebook profile pictures are.u00a0

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