On RationalWiki the Fun namespace is reserved for items that are off mission but amusing and therefore deemed worthy of keeping. Some articles have fun counterparts to avoid diluting serious topics with excessive snark.
- Watkins, Calvert, et alii; The American Heritage Dictionary (1975, edited by William Morris).
- Small farm today. 22-24. Missouri Farm Pub.. 2005. ISBN 978-1-58017-161-8.