• MatchMaker - Mushrooms of the Pacific Northwest

• RCW 76.48.060: Specialized Forest Products Permits

Sales

• Fungi Perfecti
• Ostrom's Farms
• Pro Mushrooms - local mushroom CSA (Community Supported Agriculture)

Pacific Northwest Mushroom Clubs

Washington

• Kitsap Peninsula Mycological Society (KPMS), Bremerton, WA
• Northwest Mushroomers Association (NMA), Bellingham, WA
• Olympic Peninsula Mycological Society (OPMS), Chimacum, WA
• Palouse Mycological Association (PMA), Pullman, WA
• Puget Sound Mycological Society (PSMC), Seattle, WA
• Snohomish County Mycological Society (SCMS), Everett, WA
• South Sound Mushroom Club (SSMC), Olympia, WA
• Southwest Washington Mycological Society (SWMS), Chehalis WA
• Spokane Mushroom Club (SMC), Spokane, WA
• Yakima Valley Mushroom Society (YVMS), Yakima, WA

Oregon

• Cascade Mycological Society (CMS), Eugene, OR
• Oregon Mycological Society (OMS), Portland, OR
• Wild Rivers Mushroom Club (WRMC), Harbor, OR
• Willamette Valley Mushroom Society (WVMS), Salem, OR

NW Canada

• South Vancouver Island Mycological Society (SVIMS), Victoria, BC
• Edmonton Mycological Club, (EMC), Edmonton, AB
• Vancouver Mycological Society (VMS), Vancouver, BC

Idaho

• Southern Idaho Mycological Association (SIMA), Boise, ID

Other Organizations and Reference Websites

• Mushroom Expert
• Fungi Photo
• Mushroom Pro 
• Rogers Mushrooms
• Eating Wild Mushrooms 
• Is this mushroom edible? 
• Matisman.com
• North American Mycological Association
• Pacific Northwest Key Council
• Pacific Northwest Mushroom Festival
• Puget Sound Mycological Society
• North American Truffling Society
• New World Truffiers
• Washington Truffle Society
• Sunny's Guide to WA State Nature Resources
• Mushroom: The Journal of Wild Mushrooming
• Mykoweb.com A site devoted to the science of mycology and the hobby of mushrooming.
• Mycological Society of san Francisco operates the largest local amateur mycological association
• Mycological Society of America
• Mushroom Observer is a site to record observations about mushrooms, help people identify muchrooms, and expand the mushroom scientific exploration (mycology) community.
• Radical Mycology
• Fungal Jungal is an educational site maintained by the University of Montana
• Tom Volk Fungi is a site provided by the Department of Biology of University of Wisconson
• Tree of Life is a site which records information and new changes in the Tree of Life.

  Books (in order by author's last name)

• Mushrooms Demystified, by David Arora
• All That the Rain Promises and More: A Hip Pocket Guide to Western Mushrooms, by David Arora
• Mushrooms: Poisons and Panaceas: a Handbook for Naturalist, Mycologists, and Physicians, by Denis Benjamin 
• Musings of a Mushroom Hunter: A Natural History of Foraging, by Denis Benjamin
• National Audubon Society field Guide to North American Mushrooms, by Gary Lincoff
• The New Savory Wild Mushroom, by Margaret McKenney, Daniel Stuntz, & Joseph Ammirati
• A Field Guide to Mushrooms: North America, by Kent McKnight and Vera McKnight
• Mushrooms and Other Fungi of North America, by Roger Phillips
  
• The Mushroom Hunter's Field Guide, by Alexander Smith and Nancy Weber
  
• Growing Gourmet and Medicinal Mushrooms, by Paul Stamets
• Mushroom Cultivator: A Practical Guide to Growing Mushrooms at Home, by Paul Stamets
• Field Guide to North American Truffles: Hunting, Identifying, and Enjoying the World's Most Prized Fungi, by Matt Trappe, Frank Evans, James Trappe
  
• Mushrooms of the Pacific Northwest, by Steve Trudell

Miscellaneous

• National Geographic:  Lightning Makes Mushrooms Multiply
• Taylor Lockwood, amazing photographer of mushrooms and fungi: http://www.kingdomoffungi.com
• Wild About Mushrooms:  The Cookbook of the Mycological Society of San Francisco
• South Sound Mushroom Club on Facebook