Acronym Finder - The world's largest and most comprehensive dictionary of acronyms, abbreviations, and initialisms.
American Fact Finder - Provides access to data about the United States, Puerto Rico and the Island Areas. The data comes from several censuses and surveys.
Bartleby's Quotations - The 120,000 most authoritative quotations on the web, with 50,000 other short selections.
Digital Public Library of America - Explore over 7 million items from libraries, archives, and museums including select exhibitions.
FactCheck - Monitors the factual accuracy of what is said by major U.S. political players in the form of TV ads, debates, speeches, interviews, and news releases.
Internet Archive - Over 6 million texts, 1.5 million movies, 100,000 live music shows, and 2 million audio recordings available for free. Also allows you to enter a URL and browse snapshots from over 417 billion websites.
Internet Public Library - A guide to various internet resources by subject including digital newspapers and magazines.
Snopes - The definitive Internet reference source for urban legends, folklore, myths, rumors, and misinformation.
Earth Calendar - A calendar of holidays and celebrations around the world sorted by date, country, or religion.
Infoplease - Provides a comprehensive encyclopedia, almanac, atlas, dictionary, and thesaurus.
Merriam-Webster - Free searchable dictionary and thesaurus, word games, a word of the day, and many other English language and vocabulary reference tools and resources.
Old Farmers Almanac - Offers free long range weather forecasts, full moon dates, weather history, sun rise and set times, best planting dates, and folklore.
National Electric Code - Adopted in all 50 states, the NEC is the benchmark for safe electrical design, installation, and inspection to protect people and property from electrical hazards.