Felicifia was a utilitarianism discussion forum active between late 2006 and the mid-2010s.
The forum hosted discussions, by contributors such as Toby Ord, Carl Shulman, and Brian Tomasik, about many ideas that would later become a core part of effective altruism, including earning to give, wild animal welfare, the timing of philanthropy, and others. Sam Bankman-Fried was a regular visitor in the early 2010s, and credits that forum for introducing him to the effective altruism community.
Two versions of the Felicifia forum existed. The original version ("Old Felicifia") was created in late 2006 to early 2007 by Seth Baum, as a group blog/forum which superseded an earlier solo blog by Baum with the same name. In 2008, a newer version was created ("New Felificia"), and Old Felicifia was abandoned shortly thereafter.
Francini, Louis (2020) Complete archive of the Felicifia forum, Effective Altruism Forum, May 30.
Felicifia. Complete archive of New Felicifia.
Old Felicifia. Incomplete archive of Old Felicifia.
Wiblin, Robert & Keiran Harris (2022) Sam Bankman-Fried on taking a high-risk approach to crypto and doing good, 80,000 Hours, April 14.
Baum, Seth (2006) New users start here, (Old) Felicifia, September 24.
Tomasik, Brian (2018) History of Old Felicifia, Old Felicifia, December 7.