Anvilfire - Check out their blacksmithing list, plans for forges, projects, and chat room.

ABANA (Artist Blacksmith Association of North America)

Emile's Blacksmithing Links - Very nice comprehensive list of foundry's, supplier's, and personal blacksmith sites

Blacksmith's Virtual Junk Yard - Excellent source and discussion area for historical blacksmithing references. And other blacksmithing topics too!

Kivort Steel - Capital District steel supplier. Their web site isn't large yet, but definately give them a call!

Amour Archive - An increadable wealth of historical info.

Netsword - Many excellent areas including a forum for beginning swordsmiths

Sword Forum International - Another excellent source for anything dealing with swords. Although they do answer beginner's questions they excel at given in-depth information about many advanced processes.