Royal Roads University - Centre for Non-Timber Resources
http://www.royalroads.ca/cntr

FAO Non-Wood Forest Products, United Nations
http://www.fao.org/forestry/FOP/FOPW/NWFP/new/nwfp.htm

Northern Forest Diversification Centre, Manitoba
http://www.nfdc.ca/ntfp_def.htm

Non Timber Forest Products, United States
http://www.ifcae.org/ntfp/

Non-Timber Forest Products, United States
http://www.sfp.forprod.vt.edu/