International Dark-Sky Association (IDA): http://www.darksky.org/ Dark Sky Virginia (VA chapter of IDA): http://www.darkvirginiasky.org/ Saving Dark Skies in Rappahannock County: http://www.savingdarkskies.com/ Dark Skies of Rappahannock Facebook: https://www.facebook.com/DarkSkyRappahannock/ Solar United Neighbors of Virginia: http://www.solarunitedneighbors.org/virginia/ Piedmont Environmental Council (PEC): https://www.pecva.org/ Virginia Conservation Network (VCN): http://www.vcnva.org/ Blue Ridge PRISM: http://blueridgeprism.org/