Encyclopedia.com
A free Internet encyclopedia – because learning is fun!
Scientific American Magazine
Their special section, "Ask the Experts," offers a wide variety of questions and answers. Check out their archive for lots of fascinating articles!
Study Web
Peruse the numerous academic categories or perform a specific search to find what you are looking for!
Kids.net.au
This search engine for kids contains over 4,000 categories to browse through and over 20,000 child-friendly websites.