Information is the currency of the Internet, and personal information has become a commodity. Protecting financial information like credit card numbers, addresses and phone numbers is a no-brainer, and an Online Privacy Policy can help put customers at ease. If your days are spent browsing the web, you'll want to know when you're being tracked by a trail of cookies, whether your personal data might be sold, and whether your inbox will start overflowing with unwanted solicitations. An Online Privacy Policy can also spell out whether a site collects demographic data such as age, gender, income, race, religion or political affiliation. Internet privacy laws are evolving, and if you run a website, you'll need to pay attention to legal requirements such as the Children's Online Privacy Act. Many sites voluntarily adopt rules that go above and beyond the law by creating an Online Privacy Policy.