I have been sitting on the fence for a couple of years now and I finally made the decision to order some mushroom spawn. Fungi Perfecti is the company of Paul Stamets, also the author of multiple books on mushrooms. He is generally considered the authority on growing mushrooms.
Some of his books.

Mycelium Running: How Mushrooms [...]

The yearbook in my opinion is the number 1 reason to become involved with the Seed Savers Exchange. Members eagerly anticipate receiving their yearbook towards the end of January. The forums at seedsavers.org usually start to post notes of excitement as they receive their copy. You can almost watch the mailings rush across the United [...]

First and foremost, I believe strongly in the stated mission of the Seed Savers Exchange. I recommend everyone join and become a member.
With that said, I have become frustrated by some of the decisions being made at Heritage Farm. Since I believe firmly that public discussion is one of the strongest means for change, I [...]