National Association for Gifted Children http://www.nagc.org/
Connecticut Association for the Gifted http://www.ctgifted.org/
Center for Gifted Education at the College of William & Mary http://cfge.wm.edu/
NEAG Center For Gifted Education and Talent Development at UConn http://www.gifted.uconn.edu/
Service Learning http://www.goodcharacter.com/SERVICE/service.html
Net Trekker http://www.nettrekker.com/
Center for Talented Youth at Johns Hopkins University http://www.jhu.edu/~gifted/
Supporting the Emotional Needs of Gifted Children http://www.sengifted.org/
Summer Institute for the Gifted http://www.giftedstudy.com/
Hoagies Gifted Page http://www.hoagiesgifted.org/
Davidson Institute for Talent Development http://www.ditd.org/
Corporation for National and Community Service http://www.serve.gov/
Lateral Thinking/Stories with Holes http://storieswithholes.com
Toothpick Puzzles http://www.madras.fife.sch.uk/maths/toothpickworld/index.html
Science http://www.funology.com
Logic Puzzles/Plexers http://www.iriddler.com
Mathematical KenKen Puzzles http://www.kenken.com