| Cyclepedia: Motorcycle Information https://www.cyclepedia.com/ Motorcycling information, repair manuals, technical data, and useful statistics organized by manufacturer. Completely searchable and easy to use. | |
| Encyclopedia Mythica https://pantheon.org/ Over 6,000 entries on mythology, folklore, and legend. Includes some images and stories. | |
| Peakware World Mountain Encyclopedia https://peakware.com/ Includes reference information such as height, location, first ascent data, photos, web links, summit log entries for hundreds of mountains worldwide. | |
| The Book of Threes https://bookofthrees.com/ Read and contribute on the both natural and unnatural occurrences or the number three. | |