On the flip side, the people most likely to do things like this are also most likely to set up their own site somewhere and keep it running. For instance, http://www.windytan.com/ (Oona Räisänen) and http://tronixstuff.com/ (John Boxall).
Fred Nachbaur of the internet, one of his interesting projects:
announced on rec.audio.tubes:
https://groups.google.com/forum/#!topic/rec.audio.tubes/swgQ... (his early links are long dead)
Here starts one preamp discussion:
http://www.ampage.org/homebrew.cgi?cat=sg&sb=&so=hl&page=989...
If you like, then here is the rest of that story:
http://www.dogstar.dantimax.dk
And don't forget this:
With lost artists go lost arts.