"LinkedIn: I have everywhere you’ve worked. Everywhere you went to college. Facebook: I have your family, your wife, your kids, your boyfriend, your girlfriend, your last vacation. Twitter: I have everything you’re doing throughout the day. If you’re on Foursquare, I can geolocate where you do it."

This is so true lol. Many people don't realize all the valuable info they put up on social media. Great article btw.