Specialized Tools

Math & Science

• geometry - math and science links
• ExploreMath.com - math activities
• Math Forum - Internet Math Library
• Largest Primes site
• ExploreScience.com - science activities
• Exploratorium - exploring science, art and human perception
• Digital Morphology - exploring "innards"
• HowStuffWorks
• The Why Files - "Science behind the news"
• Hot Topics in Science & Nature - BBC
• electronic Biologia Centrali-Americana - plants & animals of Mexico & Central America
• NatureServe - science & conservation
• Biology Browser
• National Science Digital Library
• Understanding science
• scirus - scientific information
• Intute - science, engineering, technology
• nearctica - "the natural world of North America"
• SORA - Ornithological Research
• Life Histories of North American birds
• Public Library of Science
• Physics today - physics news & research
• chmoogle - Chemistry search
• webelements - online periodic table

Other

• Guides to Specialized search engines
• Better Business Bureau - search page for company info
• AlphaSearch - a gateway into gateway sites (meta-meta-site)
• Geniusfind - topic-specific searching
• BUBL - search selected internet resources
• Search Systems - Online public records
• Wikipedia - free encyclopedia. There is a Wikipedia Utilities page here for Wikipedia users.
• Everything - a type of collaborative information base
• Disaster Finder at NASA
• ConsumerReports
• Museum of Online Museums
• International legal information - Global Legal Information Network
• Directory of Online Government Gazettes
• Electronic portal links - U.S. Library of Congress
• The History Cooperative
• ECHO - Exploring and Collecting History Online (science & technology)
• Art information - the Grove Dictionary of Art Online
• FreePatentsOnline - patent searching
• gnod - "discover new things"
• The Museum of Unworkable Devices
• Dull Men's Club - the "quiet room" of the web
• manhole cover photography
• Political Contributions - United States
• Google specialized searches, for example Movies
• Toy hazard recalls at U.S. CPSC

Research Sources