I have regular misgivings about the Knights & Knaves Alehouse and certainly don't feel comfortable posting there, but I still read the forums with great alacrity. The Alehouse is among the best old school forums on the net, provided you have a strong constitution, which I guess I don't. However, it's one of Trent Foster's regular hang-outs and he's a true gurus of old school history and philosophy, so I check the place out on a regular basis nonetheless.
To illustrate my point, here are two really interesting threads I'll be keeping my eye on.
What was the first non-old school RPG? (Hint: Moldvay Basic is a strong contender)
Matt Finch is working on a Primer for Old School Gaming. Some really excellent stuff here. Little wonder that he's someone whose judgment and insights I've come to respect a great deal.
Very good stuff.