I am sorry, but not surprised, that no one mentioned the Lake Winnipesaukee Watershed Association (
http://www.winnipesaukee.org/index.htm). This is a great group (I worked for them in 2000) working hard and often silently to protect this great resource. This is one of the organizations featured in the Laconia Citizen article from last week that first brought the AMEX commercial to folks attention. If you don't have time to volunteer with this group, financial help is always welcome!