Consider w all posts to be the equiv alent of sharing an anecdote in the middle of a cocktail party. All their friends and family are there and yours are too. Don't say anything you wouldn't say in this crowded room.
Photo Albums & Tagging
Not sure about your privacy settings? Don't add a location or your photos might be shared with far more people than you think.You can change the privacy of each album by editing the album and clicking on
the padlock. Even if you hav e changed your privacy settings to "Friends Only" it w ill only apply to future photo albums. You need to change older albums manually.
Facebook makes it possible to tag someone even if that person is not a friend of yours, or not on Facebook.Think carefully, or talk to the person, before you do this.
Some people have very good reasons to not want their details, photos and names on Facebook. I t's good practise to check with people before you put photos of them on Facebook (or any where on the internet) at all.
"Facebook Tips: Posting other people's walls and Photo Albums & Tagging"