Reference

Almanacs

FactMonster.com Almanac

InfoPlease.com

Farmer's Almanac

Biographies

Biography Links

Dictionaries/Thesaurus

Mirriam-Webster Online
Online Dictionary and Thesaurus

dictionary.com

Roget's Thesaurus online
Containing 35,000 synonyms and over 250,000 cross-references, this thesaurus features succinct word definitions and an innovative hyperlinked category index.

Encyclopedias

Encarta.com

Encyclopedia.com
from Electric Library

See also PAUSD online databases and Palo Alto City Library Databases

Maps

Perry-Castaneda Maps
Maps for locations around the world

MapMachine
National Geographic Maps

Quotations

Bartlett's Quotations

If you don't see what you are looking for, try RefDesk. Refdesk is a one-stop online reference site.