I asked this on IRC, but posting it here, too, in case someone sees it here and not there.
Can someone volunteer to respond to this tweet: https://twitter.com/translatewiki/status/1088137687461183488%0F "@CentOSProject Can you point me to an active contributor to cloud images in the community? I've searched before, and failed, and the CentOS @awscloud AMIs haven't been updated since May 2018 (i.e. are still on 7.5). https://aws.amazon.com/marketplace/pp/B00O7WM7QW "
I have no idea how those are updated, or who provided what's there. I seem to remember asking this before, but I don't think anybody raised their hands.
If you know, or if it's you, please document here - https://wiki.centos.org/Cloud/AWS - how one goes about uploading those images, and/or who is responsible for doing so.