Light Pollution Groups
- International Dark Sky Association – www.darksky.org
- Belgium – www.lichthinder.be
- Czech Republic – www.astro.cz/darksky/
- France – www.astrosurf.com/anpcn/
- Germany – www.lichtverschmutzung.de
- Hungary – fenyszennyezes.csillagaszat.hu
- Italy – debora.pd.astro.it/cinzano/
- Malta – www.maltastro.org
- Nederlands – www.platformlichthinder.nl
- Slovenia – www.fiz.uni-lj.si/astro/comets/DSSi/
- Switzerland – www.darksky.ch
- UK – BAA Campaign for Dark Skies
Measurement & Modeling
- Pierantonio Cinzano’s Light Pollution maps and models
Council development plans relating to lighting
International Laws & Documents
- Slovenian Light Pollution Law (unofficial summary) (2007)
- Czech Protection of the Atmosphere Act (2002) (from astro.cz)
- Council of Europe Noise and light pollution: serious risks for the environment March 2008
- Council of Europe Noise and light pollution: serious risks for the environment March 2010