Encyclopedias & FAQs
109 sites
https://zillman.us/subject-tracers/directory-resources
Marcus P. Zillman's 2026 Directory of Directories is a massive curated reference collection covering hundreds of subject categories, from AI and biotechnology to genealogy and journalism. Created by a self-described eSolutions Architect and Internet expert, this long-running resource serves as a meta-directory linking to specialized resource guides across virtually every field of knowledge.
https://rumkin.com/tools/cipher
Tyler Akins' Rumkin.com hosts a comprehensive collection of browser-based cipher and code tools, covering everything from classic substitution ciphers like Caesar and Atbash to more obscure ones like Playfair and Übchi. Each tool automates the encoding and decoding process while explaining the underlying logic, making it a valuable reference for cryptography hobbyists and puzzle enthusiasts alike.
https://degraeve.com/reference/urlencoding.php
A handy reference page from DeGraeve.com listing every URL-encoded character with its corresponding percent-encoded hex value, covering ASCII, special symbols, and extended Latin characters. Part of a larger toolset site, this page serves developers and web enthusiasts who need a quick lookup table for URL encoding without digging through documentation.
http://web.textfiles.com/
Jason Scott's web.textfiles.com is a sprawling archive of historical text files covering hacking, phreaking, e-zines, humor, virus research, and underground computing culture from the BBS era and beyond. It's an essential digital preservation project cataloging thousands of documents that capture the raw, unfiltered voice of early internet and hacker subcultures.
https://researchbuzz.me/
ResearchBuzz has been covering the world of search engines, databases, archives, and online information resources since 1998, making it one of the longest-running research-focused web publications around. Run by a single author known as ResearchBuzz, the site pairs news commentary with a growing suite of original tools like SearchTweaks, Local Search America, and Congress Corral that help users get more out of Google, Wikipedia, and RSS feeds.
https://jewishencyclopedia.com/
JewishEncyclopedia.com hosts the complete digitized contents of the 1906 Jewish Encyclopedia, covering thousands of entries on Jewish history, religion, culture, biography, and geography. An invaluable reference resource, it provides free public access to a monumental work of scholarship that remains remarkably relevant despite its age.
https://webcurios.co.uk/
Web Curios is a long-running newsletter-style blog curating the most interesting, strange, and compelling corners of the internet, published on a regular weekly schedule. Each edition is a sprawling, opinionated tour through web oddities, digital culture, and current events, written with a distinctly sardonic British voice.
http://laisha.com/zine/odphistory.html
A detailed historical account of the Open Directory Project (ODP), tracing its origins from Rich Skrenta's 1998 GnuHoo experiment through its growth into a massive volunteer-edited web directory with over 597,000 sites and 11,500 editors. Published as part of a zine newsletter, it offers a fascinating inside perspective on the early chaos, politics, and community spirit that shaped one of the early web's most influential directories.
http://searchenginesoftheworld.com/
Search Engines of the World is a long-running directory cataloging internet search engines organized by geographic region, covering Africa, America, Asia, Australasia, Europe, and global resources. Dating back to 1996, it serves as a reference for finding region-specific search tools from around the globe.
http://catb.org/~esr/jargon/html/index.html
The Jargon File is the legendary online lexicon of hacker slang, culture, and folklore, maintained by Eric S. Raymond (ESR) and covering everything from technical terminology to the sociology of hacker life. Version 4.4.7 includes a full glossary, essays on hacker writing and speech styles, appendices on hacker folklore, and a detailed portrait of hacker culture that has made this one of the most cited references in computing history.