Yes it is! Genmay or General Mayhem.
And whether Emeralds5hey is aware of it or not, I think he helped to steer my attention over to Genmay. (There is no spoon.)
I'll admit total ignorance of Genmay before today, but when I found it, it was like the key that linked together so much. When I was in high school (spring '99 – winter '03), I casually browsed Something Awful, Newgrounds, albinoblacksheep, occasionally Stileproject, and some ebaumsworld. Enough to see All Your Base happen all over the place.
But I had never been to Genmay. I may have stumbled across the General Mayhem section of Stile Project once or twice, but I don't think their's started until 04.
Basically, HardOCP was started in 1997.
I'm not sure when exactly Hardforums began. But their General Discussion board was called General Mayhem. In 2002 (either due to bandwidth costs, people getting out of hand, or both) Hardforums closed down General Mayhem. The users themselves created Genmay.com, the new (at the home) time of General Mayhem.
A ton of memes made their way through Genmay, and plenty were born there. "The Internet is Serious Business" originated there. But then to find out that Fapping, kthxbai, noes, pwned, ROFL (waffle) and more all had been big parts of their community prior to 4chan, that was kind of mindblowing. A lot of the jokes were common between them and SomethingAwful, but today many things that we assume are 4chan memes (ie: just part of Caturday) began much prior.
I'm going to be working on a General Mayhem parent entry tomorrow.
So, I'll leave you with this thread that changed my whole perspective:
http://www.genmay.com/showthread.php?t=118675