Category
page 1British online encyclopedias
Q455
general knowledge English-language encyclopaedia, first published in Scotland in 1768

ARKive
thumb|Wildscreen ARK Launch Party 2024
ARKive was a global initiative with the mission of "promoting the conservation of the world's threatened species, through the power of wildlife imagery", which it did by locating and gathering films, photographs and audio recordings of the world's species into a centralised digital archive. Its priority was the completion of audio-visual profiles for the c. 17,000 species on the IUCN Red List of Threatened Species.
Dictionary of Greek and Roman Geography
classical dictionary

The Encyclopedia of Science Fiction
English language reference work

Routledge Encyclopedia of Philosophy
1998 philosophy text edited by Edward Craig
Dictionary of Greek and Roman Antiquities
encyclopedia
World History Encyclopedia
online encyclopedia
Flora Europaea
book
Omniglot
Omniglot () is an online encyclopedia focused on languages and writing systems.
h2g2
The h2g2 website is a British-based collaborative online encyclopaedia project. It describes itself as "an unconventional guide to life, the universe, and everything", in the spirit of the fictional publication ''The Hitchhiker's Guide to the Galaxy'' from the science fiction comedy series of the same name by Douglas Adams. It was founded by Adams in 1999 and was run by the BBC between 2001 and 2011.

The Encyclopedia of Fantasy
book by John Clute and John Grant
The Hussaini Encyclopedia
book by Muḥammad Ṣādiq Muḥammad Karbāsī
Oxford Art Online
gateway to the online subscription art reference publications of Oxford University Press