Looking for Lichens
- Blog with photos and descriptions.
- http://zeepoeder.blogspot.com/

Queensland Lichens
- General information on subtropical lichens from Queensland, Australia. Includes keys to genera and species, and glossary.
- http://members.westnet.com.au/roderickrogers/index.htm

Lichen Biology
- Introduction to lichens, which are stable, self-supporting associations between fungi (most commonly Ascomycota) and photobionts (algae or cyanobacteria). Intended for university students.
- http://bugs.bio.usyd.edu.au/Mycology/Plant_Interactions/Lichen/lichenBiology.shtml

Rhode Island's Foliose and Fruticose Lichens
- Habitat notes, distribution maps, and color photographs of over 90 species of macrolichens by Don Flenniken.
- http://www.uri.edu/ce/rinhs/webpubs/lichens/

Lichens.de
- Photos of lichens taken during British Lichen Society field trips in Britain. Contains general information and related links.
- http://www.lichens.de

Invasion of Pollution-tolerant Lichens
- Research on the distribution of four pollution-tolerant non-native lichens in the Pacific Northwest.
- http://lichens.science.oregonstate.edu/invasion.htm

Arizona State University Lichen Herbarium
- Information about the collection, the Sonoran Desert Lichen Flora Project, research, and online course material.
- http://ces.asu.edu/ASULichens/

LichenLand
- General information for young students including synoptic key and photos.
- http://mgd.nacse.org/hyperSQL/lichenland/index.html

North American Lichen Checklist
- List of cumulative updates to the most recently published North American checklist by Esslinger and Egan (1995).
- http://www.ndsu.nodak.edu/instruct/esslinge/chcklst/chcklst7.htm

Lichen Research Program, University of Maine at Fort Kent
- Information about Steve Selva's research program in lichenology. Includes a photo gallery of stubble lichens under the microscope.
- http://csdept.umfk.maine.edu/LichensWebsite/home.asp

British Lichen Society
- Advance interest in all branches of lichenology. Includes comprehensive information on British lichens.
- http://www.thebls.org.uk/

Lichens of North America
- Information about lichen biology, lichens and wildlife, lichens and people, and the book of the same title, which was published in 2001.
- http://www.lichen.com/

New Zealand Forest Lichens
- Photographs, general information, identification and related links.
- http://hiddenforest.co.nz/lichens

Dutch Lichens
- Photos and information about lichen biology. In Dutch and English.
- http://www.homepages.hetnet.nl/~matthieuvw/

Information about Lichens
- Description, structure, and environmental importance.
- http://bionet.informatik.uni-oldenburg.de/aerodata/lichenes/einfo.htm

Roccella
- Lichen genus found in Venezuela.
- http://www.angelfire.com/ri/liquen/

Endangered Lichens
- List of species protected by law in different countries.
- http://www.botany.hawaii.edu/cpsu/endlich.html

Churchyard Lichens
- General information.
- http://www.open.ac.uk/Nature_Trail/Lichen.htm

Introduction to Lichens
- Information about lichens including fossil record, life history, ecology, morphology and systematics.
- http://www.ucmp.berkeley.edu/fungi/lichens/lichens.html

European Species of the Lecanoraceae Family
- Information on monograph.
- http://biotop.umcs.lublin.pl/users/zglobek/lichens.htm

Air Pollution, Lichens and Mosses
- Brief article.
- http://www.mpm.edu/collect/botany/lichens.html