Website
Business articles from Wharton Business School for high school students

The 39 Clues

Scratch

Website to look up your own IP address

Huliq.com -- a good place for student journalists to publish

Top Teens Award: 11-year-old and 13-year-old bike around the world for Asthma

Choosing and buying musical instruments

United States state capital city quiz

Win $100 answering one geography question

worldatlas.com answers geography questions

free online translator

Science fair project ideas -- sciencebuddies.org (8 million users)

worldwinner.com -- win cash and play online; Scrabble

cafe.com -- free online games

whattheyplay.com -- reviews of videogames for parents

king.com -- the largest skill gaming site in the world

PBS has games online at sproutline.com -- for preschoolers

iknowthat.com has educational games -- grades K through 6th grade

Free legal advice -- freeadvice.com

Geekdad.com -- a cool of website of new technology for kids