One of the most commonly used methods of locating the dark web is to search for credit card numbers. With a little digging you can uncover many different credit card site that are hidden from view on the surface of the internet, but which is full of useful information for you to use. These types of sites are often called "link farms". These are organizations that specialize in using other people's information such as credit card numbers and social security numbers to establish new accounts in your name. If you are ever contacted by someone claiming to be from a "link farm" or "link cluster" it is important to know and understand how these organizations make money.