Re: Employers Looking At Facebook...My Story
Facebook and twitter are in the public sphere, so saying negative things work related on them is just as bad as saying it in person an being over-heard. It's like we're all told a children, if you don't have anything nice to say, the don't say anything at all. If this girl has been stupid enough to say negative things about a colleague online then it's her own fault isn't it, if she gets punished because of it.
A lot of people will be overly protective and say that what goes online is private but let's be honest, nobody posts stuff on social media sites that they want to keep private, they post things which they want to share with others.
This is what private messaging is for.