Basidiomycetes http://www.basidiomycetes.org/
A clearing house for research information about the basidiomycete fungi. Includes a list of laboratories focused on the basidiomycota, lists of basidiomycete species, conferences and other events, and an index of available genomic information.
Macrofungi of Costa Rica http://www.nybg.org/bsci/res/hall/
Images and keys for agarics and boletes found in the regions of Costa Rica that have been explored by the authors, with particular attention to Amanita. Several images of common as well as unusual and apparently new species.