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.
http://www.presidency.ucsb.edu/
Wolfram Alpha, a computational search engine, also has a pretty impressive library archive where you can find thousands of downloadable resources from Wolfram research.
http://library.wolfram.com/
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.
http://www.almanac.com/
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.
http://www.martindalecenter.com/
Bibliomania offers more than 2000 classic texts online for you to peruse, as well as study guides and a searchable index.
http://www.bibliomania.com/
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.
http://www.si.edu/Encyclopedia_SI/
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.
http://www.dmoz.org/
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.
http://openlibrary.org/
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.
http://www.factbites.com/
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.
http://www.nolo.com/dictionary?