Millsbury.com

Millsbury (as in General Mills) is a virtual community where kids can play games to earn points to "buy" things, visit a virtual museum, mix their own music, and lots more. Some advertising.

http://www.millsberry.com/

A.K.A. Houdini

An online exhibit with Teacher Resources, trivia, etc.

http://www.akahoudini.org/htdocs/index.php

World Ice Art Championships

From Fairbanks, Alaska.

http://www.icealaska.com/index.html

The Training Station

Animated Exercises -- little diagrams show you how to do over 100 exercises.

http://thetrainingstationinc.com/exercises.html

HP Activity Center

Currently featuring several nice St. Patrick's Day printables (bookmarks, party invitations, greeting cards, etc.).

http://www.printsville.com/

Blinkx

The largest collection of digital video on the web.

http://blinkx.com/