The Arbor Day Foundation - Information on tree and shrub care; education resources related to trees; promoting the planting and maintenance of urban forests through Arbor Day programs, Tree City USA, and other programs.
Center for Urban Forestry at Morris Arboretum - Provides technical expertise and professional support for urban/environmental programs in the mid-atlantic and northeastern area of the United States.
Men Of The Trees, Inc. - Non-profit organisation promoting community involvement in seed collecting, propagation, re-vegetation and aftercare. Provides detals of current programs, calendar of events, and locations in Western Australia.
Texas Urban Forestry Council - Site provides information about the organization's programs, invasive pests, trees, has links to related sites and has a news page with urban forestry related articles.
Tree Ordinance Guidelines - A handbook for the development and evaluation of local urban forestry programs.
USDA Forest Service, Urban Forest Research - Information on current research on the effects of the urban forest on air quality, climate, and carbon dioxide; as well as, research on urban forest management.
