Your e-mail address is all over the place out there. Everyone who's ever sent you an e-mail still has your address in their electronic address book. E-mail addresses are like gold on the Internet. We all get things in our e-mail that we didn't request or want. You may have noticed all the advertising going on around you when you're on the Internet.
Advertising really is the grease that keeps the Internet moving.
The web site you're on now has advertisement banners at the top of each page. They're just trying to make a buck like everyone else. Advertisements and commercials are part of the fabric of our society. Just watch out for the one with a virus. Let's first try to understand what a zipped file is and why they exist.