Easterhegg, DeepPeep, The Cult of Sincerity, AGON Online
http://content.lib.utah.edu/utils/getfile/collection/uspace/id/5477/filename/5499.pdf
http://dictionary.sensagent.com/DeepPeep/en-en/
https://www.theguardian.com/technology/2009/nov/26/dark-side-internet-freenet
http://www.makeuseof.com/tag/10-search-engines-explore-deep-invisible-web/