is perhaps the most popular reference site online, with millions of high quality articles available on virtually any topic. However, there are limits to what Wikipedia can offer. Here are 47 Wikipedia alternatives
you can use to find information, research a paper, get quick answers, and much more.
The American Presidency Project is a project out of the University of California Santa Barbara. If you want to know something about American presidents, it's here: over 87,000 documents all free available to the public.
, a computational search engine, also has a pretty impressive library archive where you can find thousands of downloadable resources from Wolfram research.
The Farmer's Almanac has been around in different forms since 1792, and today's online version is even more useful. You can use the Almanac to look up tide tables, planting charts, recipes, forecasts, moon rises, and everyday advice.
The Martindale Reference Desk is divided into multiple sections: Language, Science, Business, Mathematics, etc. Simply choose the subject area you're interested in and browse the references available.
Bibliomania offers more than 2000 classic texts online for you to peruse, as well as study guides and a searchable index.
This is the definitive collection of everything the Smithsonian Museum has to offer. Search over 2 million records with images, video and sound files, electronic journals and other resources from the Smithsonian's museums, archives & libraries.
The Open Directory Project
is a humanly compiled Web directory of a variety of topics, anything from Arts to Health to Sports. Each link has been scrutinized for quality here by at least one pair of eyes, so you know it's going to be good.
Open Library is an Internet Archive
project aimed at compiling one Web page for every book ever published. To date, they have amassed over 20 million records, all of which are freely accessible.
FactBites offers searchers the ability to get comprehensive search results that actually address the context of their search queries, rather than just the keywords. For example, searching for "history of tornadoes" retrieves statistics, state by state information, and scientific background on some of the worst tornadoes documented.
Stumped on a legal term? You can find the definition in plain English at the NOLO Legal Dictionary, a free resource that provides easy to understand information on hundreds of commonly used legal words and phrases.