Key to the Lichen Genera of the PNW This is an updated version of the key at the beginning of Macrolichens of the PNW and it includes many crustose genera

Have a look at Lichen Land, a website that introduces a number of important lichen taxonomic features.
Also, you might want to check out the Synoptic lichen key for many NW lichens.
NW Lichenologist Resource page: Keys, links to herbaria, literature, TONS of good info
NW Lichenologist Home Page: lots of useful info and links
Lichens of North America web page: great pictures, interesting info

IDENTIFYING NORTH AMERICAN LICHENS:
          A GUIDE TO THE LITERATURE

Another general Lichen info page from Garden Buildingsdirect in the UK

Fungal Kingdom Hot Topics library web site with a variety of mushroom-related links (thank you Ryan!)

Mushrooms At Evergreen
Introduction to Fall Mushrooms
Introduction to Mushrooms

Here's some websites for fungal cultivation supplies and info.

An overview of the mushroom cultivation process is available on Mykoweb.com

Chicken incubator thermostats are available from Double R Discount for $18.49

A wide variety of blowers, heaters, thermostats, and other interesting stuff for the do-it yourselfers are available from Herbach and Rademan. Their inventory changes weekly, so keep checking back with them.

Fungi Perfecti has a range of supplies available for the home cultivator

Tempeh and other fermented food starters are available from GEM cultures

Culture media recipes available at American Type Culture Collection (ATCC)

Lehman's non-electric catalog (source for hand mills etc)