Wikipedia is a free online encyclopedia created and edited by volunteers around the world.

Encyclopedia Britannica is the best online encyclopedia for fact-checked articles and is used by students, educators, and researchers worldwide.

Wiktionary is a free online dictionary for multiple languages.

MedlinePlus is a health information resource for patients and families, providing trusted health info from the National Library of Medicine.

The Free Dictionary is an online dictionary, thesaurus, and encyclopedia for language reference and is used by students, writers, and researchers.

Softpedia is a free downloads encyclopedia for Windows, Mac, Linux, and Smartphones, offering software downloads, tech news, and reviews.

Encyclopedia.com is an online encyclopedia for research and homework help.

Ballotpedia is a political encyclopedia that provides voting resources, election information, and civic education.

Store norske leksikon is an online encyclopedia for research and information.

Kotobank is a Japanese dictionary and encyclopedia service providing access to multiple databases and dictionaries.

Larousse is an online encyclopedia and dictionary for French language learners and enthusiasts.

New Advent is the largest Catholic website in the world, providing resources for those seeking knowledge about faith and religion.

Oxford Reference provides authoritative academic reference works, including dictionaries, companions, and encyclopedias, from Oxford University Press for students and researchers.

Infoplease is the best online encyclopedia for students and researchers and is used by millions seeking reliable information.

WikiArt.org is a visual art encyclopedia and searchable image database featuring paintings, photographs, artist biographies, and artwork details.

Anime News Network provides the latest news, encyclopedia entries, reviews, and features on anime, manga, and related Japanese pop culture.

Uncyclopedia is a satirical online encyclopedia for entertainment and humor.

Earth.com is a news and media platform providing the internet with a homepage for the latest earth and environmental news, videos, images, and encyclopedia content.

Behavioraleconomics.com is the global hub for behavioral science, offering the annual BE Guide, online courses, insights, and a large professional community.

Encyclo is an online Dutch encyclopedia providing definitions and summaries from 2000 word lists for quick reference.

NHI.no is Norway's leading health encyclopedia providing in-depth articles on diseases, symptoms, treatment, and lifestyle topics for the public.

Cure-Naturali.it is the reference portal for natural remedies, well-being, and natural living, offering advice, encyclopedia, and professional listings in Italy.

Coinpedia is a comprehensive crypto encyclopedia and news media platform providing real-time cryptocurrency news, price analysis, market data, and educational resources for the fintech world.

Refdesk is a free, family-friendly web resource indexing and reviewing quality, current Internet reference materials, facts, and news links.