Ask before you tag
Different social networks allow for different types and amounts of tagging other people -- including photos, messages, and locations. It's tempting to just go ahead and relay a conversation on your Facebook wall that includes someone else right when it happens. But make sure to stop and ask.
"When I'm hanging out with friends, I'll just show them the status on my iPhone before I post it," said Jackie Cohen, editor of AllFacebook.com.Cohen said it's difficult to know exactly what people will want out there about themselves, so just ask.