Encyclopedia

HandWiki - Wiki Encyclopedia of Science, Technology and Computing for collaborative editing of articles dedicated to science and applications of computers, software and programming

This wiki is intended to help identify radio signals through example sounds and waterfall images. Most signals are received and recorded using a software defined radio such as the RTL-SDR, Airspy, SDRPlay, HackRF, BladeRF, Funcube Dongle, USRP or others.

Encyclopedia Mythica is the premier encyclopedia on mythology, folklore, and religion. Instant mythology since 1995.

Metapedia is an electronic encyclopedia about culture, art, science, philosophy and politics.

Golden is mapping human knowledge by using machine intelligence to make the world’s first self-constructing encyclopedia. Golden contains millions of connected topics and allows users to create, contribute and compare knowledge within a powerful wiki.

"In lulz we trust"

Tonalsoft Encyclopedia, Math and music, Microtonal Music Theory, Just Intonation. Math and music explain music theory based on microtonal and just intonation principles.

This site contains ongoing research in the classification of occlupanids.

MEDCICLOPEDIA. Diccionario Ilustrado de Terminos Medicos. ENCICLOPEDIA de Medicina. Clasificacion Internacional de T�rminos Anat�micos. Clasificacion Internacional de las Enfermedades. CIE10 CIE-10 ICD-10. Clasificaci� Internacional de los Procedimientos. MEDICINA. Anatom�a. Gastroenterologia. Atlas de Plantas Medicinales. VADEMECUM. Neurologia. Atlas de Dermatologia, Atlas de Ginecologia

Erowid is a non-profit educational & harm-reduction resource with 60 thousand pages of online information about psychoactive drugs, plants, chemicals, and technologies including entheogens, psychedelics, new psychoactive substances, research chemicals, stimulants, depressants and pharmaceuticals. This includes traditional, spiritual, and responsible use, info on health, effects, experiences, images, research, chemistry, law, media coverage, bibliographies and a whole lot more.