Cyberpunk directory:

Cyberpunk communities:
https://lainchan.jp/cyb/ - Not an endorsement.
http://www.cyberpunkforums.com/
https://8ch.net/cyber/
https://boards.systemspace.link/
irc://irc.freenode.net/cyberpunk
irc://irc.rizon.net/ join #/g/punk

Cyberpunk media:
https://www.2600.com/
https://www.exolymph.news/
https://lainzine.neocities.org/
https://www.neondystopia.com/
http://www.planetdamage.com/

Cyberpunk resources:
http://project.cyberpunk.ru/idb/
http://project.cyberpunk.ru/lib/