Use these websites to help you research your ecosystem...
Forest
http://www.blueplanetbiomes.org/deciduous_forest.htm
http://www.ucmp.berkeley.edu/exhibits/biomes/forests.php
http://www.worldbiomes.com/biomes_forest.htm
http://ths.sps.lane.edu/biomes/deciduous3/deciduous3.html
http://www.worldwildlife.org/wildworld/profiles/terrestrial/na/na0403_full.html
http://www.heartpine.com/about/history_longleaf.shtml
http://www.knowitall.org/sclife/
Grassland
http://www.blueplanetbiomes.org/grasslands.htm
http://www.ucmp.berkeley.edu/exhibits/biomes/grasslands.php
Taiga
http://www.radford.edu/~swoodwar/CLASSES/GEOG235/biomes/taiga/taiga.html
http://www.blueplanetbiomes.org/taiga.htm
http://www.ucmp.berkeley.edu/exhibits/biomes/tundra.php
http://www.radford.edu/~swoodwar/CLASSES/GEOG235/biomes/tundra/tundra.html
Desert
http://www.blueplanetbiomes.org/desert.htm
http://www.ucmp.berkeley.edu/exhibits/biomes/deserts.php
Rainforest
http://www.blueplanetbiomes.org/rainforest.htm
http://www.radford.edu/~swoodwar/CLASSES/GEOG235/biomes/rainforest/rainfrst.html
http://www.cotf.edu/ete/modules/msese/earthsysflr/rforest.html
Saltwater Shore
http://science.howstuffworks.com/environmental/conservation/issues/barrier-island.htm
http://www.ncnatural.com/Coast/dynamics.html
http://www.dnr.sc.gov/marine/pub/seascience/dynamic.html
Freshwater
http://www.nceas.ucsb.edu/nceas-web/kids/biomes/freshwater.htm
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/F/Freshwater.html
http://www.ucmp.berkeley.edu/exhibits/biomes/freshwater.php
http://www.worldbiomes.com/biomes_aquatic2.htm
http://www.bishops.k12.nf.ca/wells/biomes/html/aquatic.htm
http://www.bio.umass.edu/biology/conn.river/beaver.html
http://www.hiltonpond.org/ArticleBogsBaysPondsMain.html
http://www.mbgnet.net/fresh/wetlands/what.htm
Ocean
http://library.thinkquest.org/J003321/saltwater.htm
http://www.ucmp.berkeley.edu/exhibits/biomes/marine.php
Carolina Bays/ Pocosins
http://abob.libs.uga.edu/bobk/cbaymenu.html
http://www.albemarle-nc.com/tyrrell/PLNWR.htm
http://www.fws.gov/southeast/pubs/facts/poccon.pdf
http://www.wilderness.net/index.cfm?fuse=NWPS&sec=wildView&wname=Pocosin
http://www.eoearth.org/article/Pocosins
Mountain Bog
http://sherpaguides.com/north_carolina/mountains/natural_history/mountain_bogs.html