Do you ever feel like you're being watched? In the past, you could chalk it up to paranoia, close the curtains and get on with your life. Thanks to technology, it's not just your imagination. You really are being watched in your home, at work and everywhere in between. From online advertisers and hackers to the NSA and other government agencies, everyone is trying to keep tabs on you. And things keep getting worse. If you think you know every gadget and organization that's a danger, think again. Here are three things spying on you that you probably didn't know...