Almanacs and Factbooks
With more than 1,000,000 human-edited definitions, Acronym Finder is the world's largest and most comprehensive dictionary of acronyms, abbreviations, and initials.
Links to national and international statistics.
CIA World Factbook
World Factbook provides information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 267 world entities.
Farmer's Almanac
Provides free long range weather forecasts, home and garden advice, astronomy and full moon information, natural cures and cooking
Online edition of the Guinness World Records.
Information Please Almanac
Popular online almanac also features atlases, encyclopedia, biographies and more.
Nation Master
Contains country statistics, maps, flags, and graphs.
Old Farmer's Almanac
Online edition of the oldest continuously published periodical in North America. Includes weather, recipes, gardening tips, moon calendars, tide predictors and more.
Polling Report
Important trends in public opinion.
United States Census Bureau Guide to Sources of Statistics
This guide contains references to important primary sources of statistical information for the United States.
Writer's Almanac
Garrison Keillor's daily, five-minute-long radio, online and podcast program of poetry and literary-interest stories.
Calculators and Conversions
Calculator
Collection of various types of calculators.
Convert money from one currency to another using current exchange rates.
Convert.net
Online conversions calculator for a variety of unit measurements featuring natural language queries.
Convert Me
Weights and measures conversion.
Currency Converter
XE - Universal Currency Converter
Graphing Calculator
Graphing calculator from e-Tutor.
Inflation Calculator
Adjusts any given amount of money for inflation, according to the Consumer Price Index.
Martindale's Calculators Online Center
A collection of calculators for the sciences, business and everyday measurements. Organized by subject area.
Scientific Calculator
Trigonometry, matrices, complex numbers, unit conversion and more.
What Is A Dollar Worth?
Inflation calculator from the Federal Reserve Bank of Minneapolis.
Wolfram Alpha
Computational knowledge engine.