From the North American Lake Management Society website:
The NALMS mission statement is simple and clear: The purpose of the Society is to forge partnerships among citizens, scientists, and professionals to foster the management and protection of lakes and reservoirs for today and tomorrow.
The implication of this mission is that we are not a society with a narrow focus on professionals, academic researchers, or any smaller interest group. NALMS is a melting pot in terms of membership, and welcomes anyone interested in lakes and lake management.
In addition, a recent email from the president of NALMS offers a sample of their magazine for download called “This is NALMS” which has a selection of very good articles on lakes.