This search engine accesses over 100 sources for information on topics including business, health, reference, people, places, and science.
Searchable library of reference works, from the Bible to Parliamentary procedure.
Information on the history, people, government, economy, geography, communications, transportation, military, and transnational issues for 267 world entities.
This web site gives detailed descriptions of a wide variety of products "from daily household items...to heavy machinery," and provides product's background, history, raw materials, and manufacturing process.
No-frills reference sources: dictionaries, translators, currency conversion, and more.
Easy-to-use ready reference site offering links to materials in categories such as dictionaries, calendars, statistics, government, and genealogy.
One-stop link warehouse to any fact you might possibly need, plus word of the day, thought of the day, and more.
This “computational, knowledge engine” calculates or searches for information in a broad range of areas such as units and measures, money, weather, math, chemistry, and statistics and data analysis.