World Book http://www.worldbookonline.com/wb/home
Student Resource Center Gale World of Earth Science (e book) http://find.galegroup.com/menu/commonmenu.do?userGroupName=fuqu68371
Student Research Center Grolier Online Encyclopedia of Biomes http://www.ncwiseowl.org
Major biomes of the world http://www.runet.edu/~swoodwar/CLASSES/GEOG235/biomes/main/html
All biomes -- good information about life in biome http://www.allaboutnature.com/biomes
Major Biomes of the World http://mbgnet.mobot.org/sets/index.htm
All biomes http://www.worldbiomes.com/biomes_map.htm
Citation Machine http://citationmachine.net