Site Listings darksky.org: International Dark-Sky Association (Ida) A non-profit member organization that teaches others how to preserve the night sky through factsheets, law references, pictures, and web resources. www.darksky.org iesna.org: Ies - Illuminating Engineering Society IES (Illuminating Engineering Society of North America) - The Lighting Authority - Publisher of lighting design and illumination standards and National Electric Code for ... Keywords: ies , illumination , lighting design , lighting information , lighting manufacturers www.iesna.org/ rosecityastronomers.org: Rose City Astronomers Includes a information about the effects of light pollution and local darksky sites. www.rosecityastronomers.org/resources/ida.htm Add Site or Add URL to Submit Site to the Dark Sky Directory |