Australia
Compost Awareness Week Australia:  http://www.compostweek.com.au/

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Canada
Compost Council / Conseil Canadien: http://www.compost.org/

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Francia
Réseau Compost Citoyen: http://www.reseaucompost.org/

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Regno Unito
Home Composting: http://www.homecomposting.org.uk/content/view/27/44/
Recycle Now – Home Composting:  http://www.recyclenow.com/home_composting/
Compost Awareness Week UK: http://www.compostawarenessweek.org.uk/index.html

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USA
US Composting Council: http://www.compostingcouncil.org/