As Jim indicated, NYGBS has established its own online platform and their content is no longer hosted on findmypast. The good news is that their new platform is a whole lot easier to work with, and they are providing online access to an increasing number of resources in addition to the NYGBR. The bad news, however, is that old links to the NYGBR no longer work and that a findmypast subscription no longer provides access to the NYGBR,
The search utility on the new online platform does not require membership (do try it!), but only logged-in members can access the documents. I suppose that NYGBS members (like Jim and me) are going to be called upon to provide documents to others.
These changes also mean that NYGBS membership now has greater value than it used to have for those of us who do not live near New York City.