Consortium of North American Lichen Herbaria – a site where you can look up information on where species have been collected, species descriptions, photos and information on which herbaria have samples
“Ways of Enlichenment” – a website curated by Lichenologist Trevor Goward which has photos and information, mostly about lichens in western North America
Foray of Newfoundland and Labrador: Although the Foray group’s main focus is documenting of fungi (mushrooms) in the province, they include lichens in their surveys and issues of their publication (Omphalina) often include interesting articles about lichens.