I remember some of those posting, and I like Dogcow and Radio boob.. :) The old FRN was rocking at one time, and had some great technical discussions with radios and antenna setups for different bands.
Things must change, and most folks have gone on to commercial social sites I guess. I don't like them as much because they're not one stop shopping. I don't post to forums all that much either, since I believe most of their archiving practices are poor, all of the great info might not be there the next day. I've heard the same about Facebook too, that old posts disappear, but I haven't confirmed it.
Great job on compiling that list, cool to see those names again, and hope that some will come back!
Boomie