Here is the personal website of David Arora, who wrote two books much beloved by mushroom hunters.
The enormous, encyclopedic Mushrooms Demystified is the bible of American fungophiles, especially in the West.
All That The Rain Promises, and More distills the information for the most common and coveted fungi into a much smaller field guide that can go with you in your backpack. Excellent photographs help with your identifications.
Arora also leads a lot of rather pricey private forays in the long California season that may satisfy your cravings once our much briefer Arizona fruitings have run their course.