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.
- http://www.menofthetrees.com.au/

Tree Ordinance Guidelines
- A handbook for the development and evaluation of local urban forestry programs.
- http://www.isa-arbor.com/publications/ordinance.aspx

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.
- http://www.texasurbantrees.org

Natural Landscapes in Urban Areas
- Essay on the need for parks and other wildlife areas in urban environments.
- http://www.tk421.net/essays/park.html

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.
- http://www.fs.fed.us/ne/syracuse/index.html

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.
- http://www.business-services.upenn.edu/arboretum/uf/

Western Center for Urban Forest Research and Education
- Includes latest in urban forest research: GIS, inventory and monitoring, parking lot shade ordinances, urban heat islands, and guidelines for tree planting.
- http://wcufre.ucdavis.edu/

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.
- http://www.arborday.org/