SKS is an OpenPGP keyserver whose goal is to provide easy to deploy, decentralized, and highly reliable synchronization. That means that a key submitted to one SKS server will quickly be distributed to all key servers, and even wildly out-of-date servers, or servers that experience spotty connectivity, can fully synchronize with rest of the system.
but do they "have agreed (to some degree) to be a part of this working group and work towards improving the usability across the PGP eco-system"? it's the one criteria to be part of the list.
https://bitbucket.org/skskeyserver/sks-keyserver/wiki/Home
SKS is an OpenPGP keyserver whose goal is to provide easy to deploy, decentralized, and highly reliable synchronization. That means that a key submitted to one SKS server will quickly be distributed to all key servers, and even wildly out-of-date servers, or servers that experience spotty connectivity, can fully synchronize with rest of the system.