Remember that spyware and adware outfits share their information. The free lottery you play has your name, address, and e-mail address, and search engines have a knowledge of your browsing habits, the free newsletter that asked you to place check marks in the boxes beside the subjects that are of interest to you knows your interests, and, because of the Windows Product Activation, Microsoft has a list of the hardware and software on your computer. You can see how easy it would be to construct a very useful user-profile of anyone, and then target them with snail-mail or e-mail.