The Blacklists project is a directory of the prohibitions of the Internet deployed in the form of an encyclopedia in 13 volumes of 666 pages each. It is an extensive collection of restricted websites used for the automatic filtering of traffic considered illicit or licentious. Just like the intent of Çforbidden librariesÈ for books, Blacklists points out the sidelining of content that could be dangerous for the very survival of the system. With around 2 millions websites extracted from commercial content-control softwares, this collection reveals a cultural, social and ideological model of our society through what should not be seen.