http://www.mushroomexpert.com
A great site on all types of mushrooms with lots of information about collecting and mush more. Over 600 different Mushrooms and Keys.
http://www.rogersmushrooms.com
One of the largest online databases of Mushrooms for both North America and Europe by Roger Phillips. This site is based on his 20+ year studies of Mushrooms and other Fungi. This site has more than 3000+ images of Mushrooms and Fungi. One of our personal favorites.