Aquatic Plant Management Society
This international organization is a respected source of expertise in the field of biological, mechanical, and chemical aquatic plant management and aquatic plant species.
http://www.apms.org/

South Florida Aquatic Plant Management Society
Non-profit organization with interests in aquatic weed and plant management, growth of aquatic plants, and restoration of wetlands.
http://www.sfapms.org

Aquatic Botany
ScienceDirect - the world's leading platform offers over 2,000 high quality peer-reviewed full-text journals and books on science, technology and medicine.
http://www.sciencedirect.com/science/journal/03043770

Genlisea
The Carnivorous Plant Society. A reference point for resources on the Carnivorous plant society. Plants for sale, carnivorous plant nurseries, trading lists,Membership, cultivation and propagation information, carnivorous plant society seed bank,meetings, books and more!
http://thecps.org.uk/content/view/50/25/

Alligatorweed
Fact sheet from the Aquatic Plant Management Society.
http://www.apms.org/plants/alligatorweed.htm

Ceratophyllum demersum
Images and description of the aquatic plant Coontail.
http://aquat1.ifas.ufl.edu/cedepic.html

Counsilman/Hunsaker & Associates
Counsilman-Hunsaker, is a full-service engineering, planning, and design firm specializing since 1970 in recreation and aquatic facilities.,Natatorium,Public Swimming Pool,Leisure Pool,Outdoor Swimming Pools,Recreation Center Swimming
http://www.chah2o.com/

Brittleleaf or Slender Naiad: Najus minor
Several photographs of this submersed aquatic plant.
http://www.ppws.vt.edu/scott/weed_id/naimi.htm

Pontederia cordata: Pickerelweed
Photographs of this aquatic plant, with its description and identifying characteristics.
http://www.ppws.vt.edu/scott/weed_id/pofco.htm

Utricularia vulgaris
Several photographs of Greater Bladderwort and some identifying features of this aquatic plant.
http://www.plant-identification.co.uk/skye/lentibulariaceae/utricularia-vulgaris-agg.htm