Here is the list as it is now. It is rather small, but I will continue to update this in the future.
The sites on the list have all recieved positive (or neutral ) feedback from members of this board.
I am not putting up things like engine component sites, or suspension bushing suppliers, etc., because there are a ridiculous number, and therefore finding those parts is not a problem. I will try to avoid listing large junkyards or vendors of misc. items that have changing inventories day-to-day.
I am still going through Christer's GIANT list of websites to sort out suppliers of the sort I am looking for. I plan to add a section for chrome plating companies soon, since I came across so many questions about suppliers for that.
Any info or suggestions for changes are, of course, always welcome. I might try to elaborate a bit on the notes section about the sites themselves, to give a better idea of their services.
As far as the Companies to Avoid bit, if YOU PERSONALLY have had a bad experience with a company, then I will put it up with a reason why. I don't want to speak badly of a business at all, but especially not because of some pissed-off guy's online review or information from a friend-of-a-friend.
Hope this helps, enjoy!