Two come immediately to mind:
The Video Lounge, here on the Adobe fora. There are several professional audio folk, who hang out there. Some are musicians, while some are audio engineers. Most probably use PrPro for video editing, but not all. As for their audio programs, those will be across the board.
The second is Muvipix, a community of video, audio and still producers. They are less Adobe-centric. The Webmaster there, Ron, is a musician, and most of the original music pieces available there, were produced by him. There are many others, who come to audio from several sides, and at several levels. You will likely see Steve Grisetti, and a few other "familiar faces" on the various Muvipix boards. Also, for general discussions (where no other specific boards exist, or for introductions, the Water Cooler is a great place to post). One can post and read, just by signing up. If one wants to access things like Steve Grisetti's articles, or stock footage, or original music, one would be smart to Subscribe, as it only takes a few downloads (for pay), to offset the price of a subscription.
Thanks for the plug, Bill!
Muvipix.com was created as a community for videomakers, particularly those using consumer programs like Premiere Elements and Sony Vegas Movie Studio.
The site has attracted a number of interesting people! One is a musician who, just for fun, has built guitars and ukuleles out of cigar boxes and other household items.
It's a great place to share ideas, make friends and learn a few tricks, no matter what you're using your video for.
Here's the forum: http://muvipix.com/phpBB3/
Thanks, Bill and Steve. I have taken a look at and bookmarked the suggested links. Wonderful thing, the internet!
Some of my best friends are people I've never met face-to-face -- for better or for worse.