The following websites have presidential trivia and possibly other categories of trivia as well.

• Trivia.fyi
• Education World
• Britannica
• Constitution Center
• Legends of America
• Cavalier Daily
• Smithsonian
• Today
• Farmer's Almanac
• Traveleidoscope
• Parade
• Library of Congress
• NY History
• Senior Helpers
• Reader's Digest
• George Bush Library
• Association of Mature American Citizens
• Singup Genius
• Pratt House Museum
• Mental Floss
• Trivia Nerd
• National Geographic
• Water Cooler Trivia