So started a post from one of my Facebook connections. He thought of it as a private conversation between him and a friend. Unfortunately, he broadcast it to everyone connected to either of them.
Never, ever, ever, and I mean ever post something on Facebook, MySpace, etc. that you don't want everyone to know. Especially prospective employers.
I've written on the career dangers of this before. Just about anyone who is in a hiring position (within our industry anyway) is on Facebook and all the other social network sites. And they will check your page out. Do you feel comfortable with what they'll read or see?
Visit your own page with the mindset of a potential employer. Would you hire you based on your page?
Clean it up. Delete embarrassing photos (and remove tags from other people's photos). Remove unflattering comments. Rework you profile page. Start over if necessary. If they don't like what they see, this may be the only "contact" you have with them.
And making your page private will not solve your problems. There are easy ways around that.
Don't miss out on a great opportunity because you think your social pages are private. They're not.