International Society of Arboriculture

WCISA: Western Chapter; International Society of Arboriculture

ASCA - American Society of Consulting Arborists

Forest Pathology and Mycology Laboratory Wood Decay Diagnostic Research Project

SelecTree - A Tree Selection System for California (must have image loading turned ON)

UFEI - Urban Forestry Ecosystems Institute  Addresses the increasing need for improved management of the urban forests in California

UC Statewide IPM Project - Integrated Pest Managment info: Pest & pesticide info, weather data, other links.

A Guide to careers with a forestry degree  Discusses 10 different career options and additional information about salaries, education and more.