For instance, if a gardening site knows you are interested in heirloom vegetables, the next time you visit the site, you might be presented with an article about rare tomatoes. But some websites sell this information to marketers, which means that you may find yourself receiving catalogs from garden suppliers. Junk mail is more of an annoyance than a serious problem. But what if you are reading articles about cancer on a women's health website. Most people would consider that an invasion of privacy.
Many websites now post their privacy policies online.
Before you reveal personal information, read the policy to make sure you agree with it. Some sites specifically ask if you want to be contacted by third parties or receive e-mail updates. If you don't want your web surfing behavior to be tracked without your consent, you can configure your web browser to reject cookies . A cookie is a small file that is created and installed on your computer's hard drive by a website that wants to collect information about your interaction with the site. As you browse through the site, information is stored in the cookie.