http://www.epa.gov/owow/wetlands/types/marsh.html
http://www.dep.state.fl.us/COASTAL/habitats/saltmarshes.htm
http://aquat1.ifas.ufl.edu/guide/marshes.html
http://www.dnr.sc.gov/marine/pub/seascience/dynamic.html
Tinicum Marsh, Philadelphia, PA http://www.fws.gov/refuges/profiles/index.cfm?id=52570
Swamp Links
http://www.epa.gov/owow/wetlands/types/swamp.html
http://www.nhptv.org/natureworks/nwep7i.htm
http://library.thinkquest.org/J003192F/swamps.htm
http://www.epa.gov/owow/wetlands/types/mangrove.html
http://www.experienceneworleans.com/swamp.html
Bog Links
http://www.epa.gov/owow/wetlands/types/bog.html
http://www.twingroves.district96.k12.il.us/Wetlands/Bog/Bog.html
http://pasture.ecn.purdue.edu/AGEN521/epadir/wetlands/bogs.html http://octopus.gma.org/katahdin/bog.html http://www.dclunie.com/eshelton/wildflow/BOG/BOG.html
Fen Links
http://www.epa.gov/owow/wetlands/types/fen.html http://pasture.ecn.purdue.edu/AGEN521/epadir/wetlands/fens.html http://www.nhptv.org/Natureworks/nwep7f.htm http://www.na.fs.fed.us/spfo/pubs/n_resource/wetlands/wetlands9_organic.htm http://www.nature.org/wherewework/northamerica/states/pennsylvania/preserves/art820.html