1. Astronomy and Space
2. Crime, Security, Safety and Lighting
3. Dark Sky Parks and Preserves - includes State & National Parks
4. Energy and the Environment
5. Environmental Effects of Light
6. Featured Links
7. Good Lighting Fixtures and Where to Get Them
8. IDA Sections & Related Organizations
9. (home, new & updated) by Number and by Topic
10. Images contains in part, Satellite Imagery, Night Scapes, IDA Slides
11. Light Measuring Equipment
12. Lighting Education and Resources
13. Light Pollution
14. Light Pollution Awareness Organizations and Web Sites
15. Lighting Manufacturers
16. Measuring Light Pollution
17. Media Coverage of Light Pollution (links and references back to 1964)
    
18. Multi-Media Resources and Links
19. Outdoor Lighting Regulations (ODLRs) - International, State, Municipality, and other information.
20. Outdoor Lighting 
21. Photobiology & Pathology
22. Radio Interference & Radio Astronomy  
23. Software - For Lighting Design and E-Catalogs
24. Talks and Papers
25. Vision

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