the act of tracking people down via online tools or any other tools to find out more information about a person. Typically this word is used to describe males who are trying to find more information about females they have met or are attracted to. Though woman have been known to profile men. Not to be confused with stalking where the difference lies in the intent. Stalkers and stalking is normally used to describe people who track people down normally with evil intent, like trying to murder them, annoy them, rape them, etc...profilers are above this kind of behavoir.
Hey Daniel did you hear about Ryan? He met this girl Karen yesterday at Club Mood and didn't get her number but he profiled her on myspace and found out that she has two kids!