https://www.proxmox.com/en/proxmox-ve
https://www.proxmox.com/en/proxmox-ve/features
https://www.proxmox.com/en/proxmox-ve/comparison
https://www.proxmox.com/en/proxmox-ve/pricing

https://git.proxmox.com/

https://www.proxmox.com/en/downloads

https://www.proxmox.com/en/proxmox-ve/get-started

https://pve.proxmox.com/pve-docs/
https://pve.proxmox.com/pve-docs/pve-admin-guide.pdf
https://www.proxmox.com/en/downloads/category/documentation-pve

https://pve.proxmox.com/wiki/Main_Page
https://pve.proxmox.com/wiki/Downloads
https://pve.proxmox.com/wiki/Installation

https://forum.proxmox.com/

https://www.proxmox.com/en/training
https://www.proxmox.com/en/training/video-tutorials
    https://www.youtube.com/user/ProxmoxVE

2021
LearnLinuxTV - Virtualization
    https://www.youtube.com/playlist?list=PLT98CRl2KxKHLbcKgYLdG0HVb5F0I-jOn