| envasns.org | Environmental Industry Interactive (EII) |
| compost.org | Composting Council of Canada |
| swana.org | Solid Waste Association of North America (SWANA ) |
| stanslaughter.com | Stan Slaughter, Eco-Troubadour |
| rco.on.ca | Rotating Barrel Composter |
| costha.com | Conference on Transportation of Hazardous Articles (COSTHA) |
| astswmo.org | Association of State and Territorial Solid Waste Management Officials (ASTSWMO) |
| asiwpca.org | Association of State and Interstate Water Pollution Control Administrators (ASIW |
| tu-berlin.de | Argus |
| austin.tx.us | Backyard Composting |
, ,