The deep web refers to parts of the internet that are not indexed by regular search engines and can only be accessed through specialized browsers like Tor that provide anonymity. Websites in the deep web end in ".onion" instead of ".com" and contain not just little known forums and corporate networks, but also illegal activities. Using the deep web for e-commerce is not recommended due to its association with illegality, which could negatively impact perceptions of any business operating there. While the benefits of anonymity have some value, the deep web will likely continue to be dominated by illegal markets in the next two years as sites keep returning despite efforts to shut them down due to the money generated by underground transactions.