The Terraserver Homepage - A collection of satellite photos of various geographical locations and cities
The Dialectizer - Very politically incorrect
The Library of Congress - Look up any book or subject. They list 'em all
AltaVista Translations - Translate any text
How Stuff Works - As it says, huge collection of 'how things work' type documents
The Internet Archive - An archive of websites past, aka the Wayback Machine
The Babyname Wizard - See how popular names have been in the past
The Internet Anagram Server - Rearrange anything you like