Biomes and Ecosystems: http://www.windows2universe.org/earth/ecosystems.html 

What it's Like Where You Live?: http://www.mbgnet.net/ 

Enchanted Learning: http://www.enchantedlearning.com/biomes/  

Plants, Animals, and Ecosystems: http://www.elcerritowire.com/4/ecosystems.htm 

Kids Biology: http://www.kidsbiology.com/biology_basics/biomes/what_are_biomes_1.php 

Earth's Floor Biomes: http://www.cotf.edu/ete/modules/msese/earthsysflr/biomes.html 

Animal and Plant Photographs: http://www.vrml.k12.la.us/Picture_Perfect/Default.html