This group is dedicated to "Working to secure the long-term survival of all Iguanas"
The $30 you spend on membership gets you a years worth of their incredible IGUANA magazine, the Journal of the IIS. Dues are collected and donated to many important conservation organizations dedicated specifically to Iguanas.
For example: Recently, the Society purchased a stretch of beach simply to insure that the native Iguanas there, on the endangered species list, would have that place to live and breed and be studied undisturbed by man.
It is a noble organization with a noble cause.
I strongly suggest you join, not only to enjoy their excellent publication, but to help fund their necessary work.