iNaturalist is an essential tool in any myco focused citizen scientist or any individual looking to learn and document organisms in their local ecology whether it's fungi, flora or fauna.
Mushroomexpert.com is an excellent online resource for learning about mycology, and includes keys for assisting in identifying mushrooms with numerous photos of fungi and their spores for reference
amanitaceae.org is an online resource for keying Amanita, as well as overall education on Amanitas. If the site is not functioning, use this link as a back up
The Bolete Filter is a great resource for helping narrow down boletes to species featuring photos and keys. The Bolete Filter also features educational material on boletes as a whole