"Aspiroweb - training for thinking, learning, creativity and success" - suggestions for books, downloadable resources, research and articles on thinking skills and creativity in the classroom.
Many games for teaching science - complete with teachers' notes and instructions. Includes the chance to create your own planet by tailoring conditions. Plus some just for fun.
"Safe Sites - Kids and Teens Fun and Games, Parents Family Sites and Teacher Worksheet Resources Links" - 300 different categories of safe websites for children.
Another amazing portal with over 2,000 links for children, teachers and other adults. Kevin's playroom is organised by subject and there is an awful lot there.