GeographyIQ - Planning a trip? Preparing a school homework assignment? Perhaps you're interested in current events or are just curious about exploring the world around you. This site offers geographic, economic, political, historical and cultural information. In addition, it brings together a number of other resources including maps, flags, currency conversion as well as climate and time zone information.
Guide to Geography - About.com - resources include online world atlas, weekly articles about geography, annotated links to hundreds of sites, weekly quizzes, chats, and a free email newsletter.
National Atlas of the United States - You've seen other atlases. They're typically big books of paper maps. The pages in this atlas are here on the Internet whenever you need them. This is a new portrayal of America in maps. You've found the single best Federal source for national maps and geographic information on the Web.
National Strong-Motion Program - dedicated to investigating strong earthquake shaking at soil and rock sites throughout the US, and its potential impact on engineered structures