National Association for Gifted Children http://www.nagc.org/
Connecticut Association for Gifted http://www.ctgifted.org/
NEAG Center for Gifted and Talented Development at UConn http://www.gifted.uconn.edu
Service learning http://goodcharacter.com/SERVICE/service.html
Net Trekker http://nettrekker.com
Center for Talented Youth at John Hopkins University http://www.jhu.edu/~gifted/
Toothpick Puzzle Pages http://www.madras.fife.sch.uk/maths/toothpickworld/index.html; http://www.aimsedu.org/Puzzle/categories/toothpick.html
Logic Puzzles: Plexers, Illusions http://www.hoagiesgifted.org/brain_teasers.htm; http://www.iriddler.com/
http://www.web-us.com/BRAIN/braindominance.htm (18 question quiz)
mathematics http://www.colstate.edu/mathcontest/
mathematics http://www.dupagechildrensmuseum.org/aunty/index.html
mathematics http://cte.jhu.edu/techacademy/web/2000/heal/mathsites.htm
science http://www.nyelabs.com
science http://www.funology.com
science http://www.howstuffworks.com
Environment www.kidsplanet.org
environment http://www.epa.gov/kids
Board games to promote thinking Blockus Tetris Rush Hour
Board games to promote thinking Equate Chess Checkers
Board games to promote thinking Othello Sudoko Allowance