1. Encyclopedia Britannica

The Encyclopædia Britannica (Latin for “British Encyclopaedia”), published by Encyclopædia Britannica, Inc., is a general knowledge English-language encyclopedia. It is written by about 100 full-time editors and more than 4,000 contributors, who have included 110 Nobel Prize winners and five American presidents. The 2010 version of the 15th edition, which spans 32 volumes and 32,640 pages, was the last printed edition; digital content and distribution has continued since then. (source: Wikipedia)


Link : https://www.britannica.com/


  1. Encyclopedia.com

Encyclopedia.com allows users to access information on a subject from multiple encyclopedias and dictionary sources, and has nearly 200,000 entries and 50,000 topic summaries. It provides a collection of online encyclopedias and entries from various sources, including Oxford University Press, Columbia Encyclopedia and Gale its parent company.

Link : https://www.encyclopedia.com/


  1. The Encyclopedia of Life(EOL)

The Encyclopedia of Life (EOL) is a free, online collaborative encyclopedia intended to document all of the 1.9 million living species known to science. It is compiled from existing databases and from contributions by experts and non-experts throughout the world. It aims to build one “infinitely expandable” page for each species, including video, sound, images, graphics, as well as text

Link: https://eol.org/


  1. Wikipedia

Wikipedia is a free online encyclopedia, created and edited by volunteers around the world and hosted by the Wikimedia Foundation

Link : https://www.wikipedia.org


  1. Banglapedia

Banglapedia – the National Encyclopedia of Bangladesh, an intellectual output of over 1450 scholars, is so far the most comprehensive reference work on Bangladesh from high ancient period to date. In it users will have access to all branches of knowledge related to Bangladesh. Banglapedia has become a vital and indispensable companion to teachers, students, researchers, professionals, and general readers. As a reference tool, Banglapedia has received an enthusiastic response and has been acclaimed nationally and internationally.

Link: http://bn.banglapedia.org/


  1. Scholarpedia

Scholarpedia is an English-language online wiki-based encyclopedia with features commonly associated with open-access online academic journals, which aims to have quality content. Scholarpedia articles are written by invited expert authors and are subject to peer review.

Link: http://www.scholarpedia.org


  1. Webopedia

Webopedia is an online dictionary and Internet search engine for information technology and computing definitions

Link : https://www.webopedia.com/