The Green Office offers a full selection of sustainable office products: http://thegreenoffice.com/.
Earth 911 can help you find local recyclers, create an office recycling program, and do a waste assessment, among other programs.
MarketNet Inc.’s The Green Catalog: Brandable and eco-friendly office supplies, tote bags, and closing gift ideas in bulk quantities. Phone: (847) 255-4010.
The Green Book: The Everyday Guide to Saving the Planet One Simple Step at a Time by Elizabeth Rogers and Thomas M. Kostigen
The Green Guide, a site created by the National Geographic Society.
REALTOR® Team Store: NAR’s affiliate has an array of brandable green closing gifts, office supplies.