Mongabay http://kids.mongabay.com/
Rainforest Alliance http://www.rainforest-alliance.org/kids
World Biomes http://kids.nceas.ucsb.edu/biomes/rainforest.html
National Geographic Kids http://www.ngkids.co.uk/science-and-nature/15-cool-things-about-rainforests
Active Wild http://www.activewild.com/rainforest-facts-for-kids/
Ducksters http://www.ducksters.com/science/ecosystems/rainforest_biome.php
Videos: https://www.youtube.com/watch?v=JEsV5rqbVNQ