12 Sly Web Tricks That Put You in Control

Great article on PC World about 12 Sly Web Tricks That Put You in Control. You find out how you can Turn Wi-Fi Thieves' Worlds Upside Down (literally), Make a Laptop Thief Regret It, Finding out if the email you sent was read or not, Send a Self-Destructing Email, and other similar (and sometimes very useful) information.