Here are some related sites to Metalworking. There are some that I work with, others that I enjoy, and one that I have some articles written on that you can also refer to.
On the Metal Web News, I have written articles on: welding led racks, jig tables, castle door hinges and hardware, swage stand, anvil stand, tank racks, welder set up, wire feed enclosure with boom, cutting torch circle attachment, and pouring babbit in a Little Giant trip hammer.
Brandywine Glass - Robert Burch http://www.robertburchglass.com
William Doub Furniture http://www.customfurniture-doub.com
New England Blacksmiths http://www.newenglandblacksmiths.org
Metal Web News http://www.metalwebnews.com
Hot Anvil Forge http://www.hotanvil-forge.com
W.T.Jones Welding and Lineboring http://www.jonesboring.com
Miller Welding http://www.millerwelds.com
the UMBA library page http://umbaonline.org/library.html
(Upper Midwest Blacksmiths)