Visit these sites to learn more about light pollution, the problems it causes, and solutions to this unwanted byproduct of our modern 24-by-7 lifestyle.

• International Dark-Sky Association
  Worldwide group of lighting reform advocates.
   
• SELENE
  NYS-based group and IDA affiliate
   
• NYC Audubon Bird-Safe Building Guidelines
  Bird-safe building guidelines from the NY City Audubon Society include exterior lighting recommendations starting on page 41. Notice: This is a 38 MB PDF file.
   
• Sierra Club: Long Island Group defines light pollution
  Using pictures and text, the Long Island chapter of the Sierra Club tells the light pollution story: what it is and how you can help eliminate it.
   
• Amagansett Dark Sky Clock
  See whether tonight will be cloud free and right for astronomical observing at the Amagansett observing location on Long Island.
   
• Cancer Incidence Study PowerPoint presentation
  PowerPoint file that presents the results of an investigation of the relationship between exposure to artificial illumination and breast cancer rates, using Isreal as a case study.
   
• Citizens for Responsible Lighting
  A nonprofit member based organization formed for the advancement of public awareness leading to light pollution and obtrusive outdoor lighting reform.
   
• Consumer Guide to Night Sky Friendly Lighting
  A well-written guide to good lighting from the folks at the New Mexico Heritage Preservation Alliance. (PDF file)
   
• Does Lighting Harm Trees?
  A guide from Purdue University to the effects of artificial nighttime lighting on trees of various species.
   
• Ecology of the Night Symposium Information
  The Muskoka Heritage Foundation''s Ecology of the Night Symposium, which brought together volunteers and professionals to examine the value of the night.
   
• Lighting And Crime: Little or No Benefit
  Information from Dr. Barry Clark about the links (or lack thereof) between lighting and crime.
   
• Prevention is the Cure - Toxic Trigger 20
  Prevention is the Cure lists restricting exposure to light at night as a way to avoid cancer and other illnesses.
   
• What are Natural Lightscapes?
  From the National Park Service: What are Natural Lightscapes? A "Natural Lightscape" is a place or environment characterized by the natural rhythm of the sun and moon cycles, clean air, and of dark nights unperturbed by artificial light. Natural lightscapes, including dark night skies, are not only a resource unto themselves, but are an integral component of countless park experiences.
   
• Constellation information
  Constellation information, star maps, and more from the University of Wisconsin.