• Acronyms & Abbreviations
• Almanacs & Yearbooks
• Biography
• Book Reviews

• Abbreviations.com - the world's largest and most comprehensive directory and search engine for acronyms, abbreviations and initialisms on the Internet. A member of the Stands4 Network.
• Acronyms & Abbreviations from the Free Dictionary by Farlex.
• Acronym Finder - With more than 1,000,000 human-edited definitions, Acronym Finder is the world's largest and most comprehensive dictionary of acronyms, abbreviations, and initialisms.
• The Acronym Server - from Silmaril Consultants (since 1988).
• GovSpeak - A Guide to U.S. Government Abbreviations and Acronyms LibGuides at the University of California San Diego
• NetLingo List of Chat Acronyms & Text Shorthand - Internet acronyms, text message jargon, abbreviations, initialisms, cyberslang, leetspeak, SMS code, textese.

• 50States.com - U.S. States and Capitals.
• Baseball Almanac - Baseball Almanac has dedicated itself to preserving the history of our national pastime. The website is an interactive baseball encyclopedia filled with nearly 500,000 pages of in-depth baseball facts, original baseball research and baseball statistics not found anywhere on the Internet.
• The CIA World Factbook - provides information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 267 world entities.
• Country Studies from the Library of Congress - contains the electronic versions of 80 books previously published in hard copy as part of the Country Studies Series by the Federal Research Division. Intended for a general audience, books in the series present a description and analysis of the historical setting and the social, economic, political, and national security systems and institutions of select countries throughout the world.
• Guinness World Records - the ultimate global authority on record breaking. Their vision is to make amazing official.
• Information Please Almanac - Information Please has been providing authoritative answers to all kinds of factual questions since 1938 - first as a popular radio quiz show, then starting in 1947 as an annual almanac, and since 1998 on the Internet.
• The Old Farmer's Almanac - weather forecasts, gardening, moon calendar, recipes and more.

• Biographical Dictionary of English Literature - from Bibliomania - biographies of English authors.
• Biographies from the MacTutor History of Mathematics Archive (School of Mathematics and Statistics, University of St. Andrews, Scotland).
• Biography.com - offers over 7,000 biographies and daily features that highlight newsworthy, compelling and surprising points-of-view.
• Biography from Top Documentary Films.
• Encyclopedia of World Biography
• InfoPlease Biography - search over 30,000 biographies.
• Nobel Prize Internet Archive
• The Presidents of the United States - presidents' biographies from the official White House.gov site.

• Amazon.com - book descriptions often contain book reviews from Publisher's Weekly, and Booklist as well as customer reviews.
• AllReaders.com - book and movies reviews. AllReaders.com classifies books based on plot, setting, character, and writing style. So, if you know what kind of book you like, you can find other authors who write similar kind of stories. Summaries are much more detailed and specific than those of most other sites.
• Booklist Online - more than 170,000 book reviews for librarians, book groups, and book lovers—from the trusted experts at the American Library Association.
• BookPage - book reviews, author interviews.
• Book Reviews from BookSpot.com - BookSpot.com is a free resource center that simplifies the search for the best book-related content on the Web. BookSpot.com editors hand select featured websites and organized them into intuitive categories, such as bestseller lists, genres, book reviews, electronic texts, book news and more.
• Kirkus Reviews - "founded in 1933, Kirkus has been an authoritative voice in book discovery for 80 years. Kirkus Reviews magazine gives industry professionals a sneak peek at the most notable books being published weeks before they’re released. Kirkus serves the book reviews to consumers in a weekly email newsletter and on Kirkus.com, giving readers unbiased, critical recommendations they can trust."
• London Review of Books - Europe's leading magazine of books and ideas.
• Midwest Book Review - Book Reviews, Book Lover Resources, Advice for Writers and Publishers.
• The New York Review of Books
• The New York Times Book Review