Alternate Reality Games SIG/Antecedents to ARGs
International Game Developers Association
Puzzle and Scavenger Hunts
Publius Enigma Masquerade
Epistolary Novels
Robinson Crusoe
Hoaxes (Intentional or Otherwise)
War of the Worlds Who Buried Paul as per Brian Moriarty (http://ludix.com/moriarty/paul.html)
