Holy cow. Pack rat; no kidding!
Layer51 was another big one for me. I still have a few things online under that name, like, uh…: http://senocular.com/pub/layer51/freetransform.swf
Oooo even have a couple of things from were-here, including a tennis battle with the final being:
http://senocular.com/pub/werehere/ASTennis/ASlines9.html
(complete with rendering bug still visible!)
I have a bunch of old stuff I wanted to go through and sort out myself, but I never found time. Or never seem to want to if I have the time heh. I have nowhere near that much though, and most of it is small, little things I was experimenting with (like the transform stuff linked above). I don’t remember keeping too much from other people, though. 
