Phrase Finder
Meanings and origins of over 2,000 English sayings, phrases and idioms. In addition to explaining things like "wet behind the ears" and "baker's dozen," it also allows you to browse through euphemisms, popular but incorrect phrase origins, proverbs, misheard lyrics (known as "mondegreens") and other categories.

Flash Animations for Physics
Animation is a great way of explaining complex concepts like chaos, optics, relativity, and such.

Marie Chantale Weblog

Search Engines and Directories A-Z

"Internet search engine and web directory news, information, commentary, opinions, profiles, howto's, and analyses." You're bound to pick up a few new search engines and some intriguing tidbits of information here"