Encyclopedias, Dictionaries, Search Engines and General Information
www.encyclopedia.com
This site has an online dictionary, thesaurus, almanac and encyclopedia. The main page also has a today in history with facts about events or birthdays on this date in time.
Mirriam-Webster Dictionary and Thesaurus
Marriam-Webster Dictionary and Thesaurus online. They have a word of the day and different word games.
Encyclopedia Britannica Online
Encyclopedia Britannica online. They have the encyclopedia, and atlas, the year in review and timelines. Some of the site is free while other aspects are part of the pay side.
Site of Quotations
This is a site of quotations. There are motivational quotes, quotes of the day, searches by author and subject and a word of the day.
Mental Floss
Test your knowledge with amazing and interesting facts, trivia, quizzes, and brain teaser games.
Big Think
Big Think is a knowledge forum. We believe that success in the future is about knowing the ideas that allow you to manage and master this universe of information. Therefore, we aim to help you move above and beyond random information, toward real knowledge, offering big ideas from fields outside your own that you can apply toward the questions and challenges in your own life.
Marginalian
The Marginalian - is a cross-disciplinary treasure chest, spanning art, science, psychology, design, philosophy, history, politics, anthropology, and more.
Wolfram Alpha
Access the Wolfram|Alpha computational knowledge engine: Answer
questions, do math, instantly get facts, create plots, calculators, unit
conversions, scientific data and statistics, help with homework—and
much more.
Google Scholar
Google Scholar provides a simple way to broadly search for scholarly literature.
From one place, you can search across many disciplines and sources: articles,
theses, books, abstracts and court opinions, from academic publishers, professional
societies, online repositories, universities and other web sites. Google Scholar
helps you find relevant work across the world of scholarly research.