Although access is free, it does require registration. FedStats Access statistical data from over 70 agencies in the U.S. federal government. Infoplease Infoplease almanacs. Also includes interactive forums, and links to fee-based educational resources. Desk Lots of information arranged topically.
Users can browse the encyclopedia entries alphabetically within each of the eight areas.
My Virtual Reference Desk Essential sources for facts and information. Old Farmer's Almanac Useful information for people in all walks of life. From the publishers of the full multi-volumed Dewey Decimal Classification system. Online A fairly detailed overview of the LC classification system, including main classes and subclasses and number ranges. LC is used in many academic libraries.