Finca Leola: www.fincaleola.com

The Billion Tree Campaign (UN Environment Programme): www.unep.org/billiontreecampaign

ReForest Costa Rica: http://reforestcostarica.com

La Reserva Forest Foundation: http://lrff.org

Finca Dos Lados entry in Rose Devi's Life in Costa Rica blog: http://rosedevi.blogspot.com/2009/03/finca-dos-lados.html

Tienda Verde www.tiendaverde.co.cr/