http://booksbxfx6ciebutmfvorkotgfbwcwp24qpcxyuyen355z4eknxbzuqd.onion/dark/Smin_Oienen_-_Dark_Web_And_Deep_Web_Place_Of_Anonymity_And_Freedom_Of_Expression/DARK_WEB.html
The dark web is accessible via a peer-to-peer network such as the TOR network. Access to the dark web can be obtained through the free Tor browser. Tor stands for "The Onion Router" and can be downloaded for free from the Surface Web.