CDC Diseases & Conditions - Provides information on an extensive list of diseases; includes overview, symptoms, prevention, photos and more.
Fact Monster - Offers links to ready reference information, and also links to science, mathematics, government, history, people, and sports information.
Information Please Almanac - Provides access to daily and kids' almanacs, an atlas, a dictionary, and an encyclopedia.
Old Farmer's Almanac - Offers access to North America's oldest continuously published periodical.
RefDesk - RefDesk provides links to ready reference information, search engines, news, weather, and chosen subject links.