websites for kids' learning

Let's pool together the websites we come across!
Here's a few from me:
http://www.beestar.org.( a curriculum-based online programs. They include Math, English Language Arts (ELA), Vocabulary, Science, Social Studies, and GT (Gifted & Talented) Math exercises. And math is for free.)
http://www.hef.org.nz">http://www.hef.org.nz
http://www.homeschoolblogger.com/newzealand/
http://www.homeschoolblogger.com/KiwiSmithFamily/
http://www.familyintegrity.org.nz
http://www.issacharian.com/
http://www.photoblog.com/charmagne
http://www.cbworldview.cesbooks.co.nz

I think all these can help children enjoy themselves. Good luck!
Lisa