offer reference website links to browse for education, libraries, dictionaries, colleges, universities, k-12, language schools, book and magazines.

New listings

Provides free animated world, country, regional, and state flags, available in three sizes.
Series of articles that explore the workings of electronics, computers, finances, health, scientific and social phenomena.
Learn how to do just about anything and get what you need to do it.
Online academic database providing citations to journal articles, conference proceedings, and more.
Expert advice to make sure you select the right map or travel book from the bewildering array of maps and travel products.
Tutorials and advice to help in your everyday life.
Interactive database providing decision-making information based on the user's preferences.
Learn how to do cool things.
Fighting ignorance since 1973 with answers to intriguing questions.
Learn how to do many things with online tips, tutorials, and how-to information.
Directory of U.S. area codes and international country calling codes.
directory of U.S. area codes by state plus cities within each area code. Also lists Canadian area codes by province or territory.
search by area code, state abbreviation, or city name.
features code lists, maps, and news to help you keep up with all the changes.
zip code and area code lookup and conversion database.