East Maui or Haleakala Volcano: Summary information above this active volcano, including eruption history.
Eco Maui - An Ecological Guide to Maui Hawaii Vacations: Photo tours, ecotourism information and links, and links to other environmental websites.
Maui Tomorrow: Dedicated to promoting responsible land use planning, community design, and sustainable growth for Maui County.
Save Kahului Harbor: Community effort to consider cultural and environmental needs when planning Kahalui Harbor's future. Area information and online petition.
Sierra Club, Maui Group: Information about the organization's Maui Island activities.
Surfrider Foundation - Maui Chapter: Information about this environmental organization's efforts to protect Maui's waves, water and beaches through conservation, activism, research and education.