I agree with Sasha - when hiring someone the first place I look is FB to see what they are posting as it gives me an idea as to their character. I know a lot of people use it differently. I for example use it to post family pics and links to articles of interest. I don't brag/boast there and am very aware that if my boss were to see it there would be nothing on there that would be questionable. Doesn't mean it's boring - just professional.