Mask resources

I can see that it is going to take me a while before I buy masks, but I thought i'd at least start by listing the best information I have found.
This is a thread on a bulletin board with just regular people posting the information, but they do link to mor official sites. Actually, this kind of information always seems to me better than the stuff on the official boards. I'll keep updating this post as I find more mask information and I'll redate it, when I update so it rides up at the top:

http://www.curevents.com/vb/showthread.php?t=40687