I wanted to get a post production forums top list started but I only have a few so far. Please feel free to ad your own favorite post production forum links to the list.
DVX User POST-PRODUCTION TOOLS
http://www.dvxuser.com/V6/forumdisplay.php?4-POST-PRODUCTION-TOOLS
Avid Pro Audio Community
http://duc.avid.com/forumdisplay.php?f=36
Blackmagic Post Procution Forum
https://forum.blackmagicdesign.com/viewforum.php?f=3
DVX User POST-PRODUCTION TOOLS
http://www.dvxuser.com/V6/forumdisplay.php?4-POST-PRODUCTION-TOOLS
Avid Pro Audio Community
http://duc.avid.com/forumdisplay.php?f=36
Blackmagic Post Procution Forum
https://forum.blackmagicdesign.com/viewforum.php?f=3