These are some some sites I have found especially useful when preparing classes for young learners.
www.bbc.co.uk/children
www.bbc.co.uk/cheebies
www.education.world.com
www.enchantedlearning.com
www.teachingenglish.org.uk
www.britishcouncil.org/learnenglish
www.iatefl.ylsig.org
www.technology4teachers.com
www.eslcafe/ideas/
www.dltk-kids.com/