UNH Herbarium Aquatic Research: http://www.unh.edu/herbarium/Aquatics/aquat_1.html

Univ. Florida Center for Aquatic and Invasive Plants: http://aquat1.ifas.ufl.edu/

Univ. Florida Wetlands Photo Gallery: http://aquat1.ifas.ufl.edu/gallery.html

Aquatic, Wetland and Invasive Plant Glossary: http://aquat1.ifas.ufl.edu/glossary.html

NALMS, North American Lake Management Society: http://www.nalms.org/

USDA National Biological Control Institute: http://www.aphis.usda.gov/nbci/nbci.html

National Biological Survey/Nonindigenous Aquatic Species: http://www.nfrcg.gov/nas/nas.htm

USDA/Plants: http://plants.usda.gov

USDA Aquatic Weed Laboratory: http://veghome.ucdavis.edu/aquaticweed/aquatic.htm

Ramsar Convention on Wetlands: http://iucn.org/themes/ramsar/

Tropica Aquarium Plants: http://www.tropica.dk/

Flynn Bogs Systems (Texas): http://csdl.tamu.edu/FLORA/flynnbog/FB1.HTML

International Waterlily Society: http://www.h2olily.com/

International Carnivorous Plant Society: http://www.sarracenia.com/faq.html

 North Carolina State Univ - Aquatic Weed Management: http://www.cropsci.ncsu.edu/aquaticweeds/

 Texas A & M Vascular Plant Image Gallery: http://www.csdl.tamu.edu/FLORA/gallery.htm