Mycological Resources on the Web (Virtual Library)
Maintained by Kathie Hodge here at Cornell, this is the most comprehensive collection of mycological links on the web. You will find the resources broken down into sections: collections, directories, discussions, general, genetics, guides, mushrooms, supplies, taxonomy, and teaching. This site is often the best starting place.

Online Glossary of Technical Terms in Plant Pathology
This useful Glossary of technical terms in Plant Pathology is edited by Phil Arneson of Cornell University. It includes definitions, illustrations, and sound files by Richard Korf to aid pronunciation.

Systematic Botany and Mycology Databases Online
A great site for nomenclature and literature references

Tools and Resources for Systematics Research
A nice collection of links at the University of Michigan Herbarium, including herbaria, nomenclatural resources, and online specimen databases

Cornell Plant Pathology Herbarium (CUP)
Home page of CUP, a large herbarium including about 400,000 specimens of fungi and also a diverse collection of plant pathogenic organisms.

'The Fifth Kingdom' Online
A nice introduction to the fungi by Bryce Kendrick

Molds: Isolation, cultivation, identification
An introductory guide to the study of moulds (fungi) by David Malloch at the University of Toronto

Medical Mycology (Univ. of Texas)
"The purpose of this web site is to disseminate information concerning medically important fungi and the health related problems they cause by using the virtual capabilities of the internet."