Well heres a couple that I really like.
http://swordforum.com/
Sword Forum international just plain rocks, its got the best information on all sorts of blades as well as articles, essays, and book reviews, I love it.
http://www.thehaca.com/
This is mainly for swordsmanship but it deals with swords as well. The Historical Armed Combat Association, or HACA is now the Association for the Renaissance Martial Arts but the basic stuffs the same. Great articles and information plus video clips of training which I really like.
http://www.oakeshott.org/
The Oakeshott institute is the webpage made in honor of Ewart Oakeshott, one of the foremost authorities on swords, God bless his soul, and it has all sorts of info most importantly the Oakshotte typologies.
If you don't find what your looking for in these pages you can check out some books too.
Medieval Swordsmanship, by John clements is great, it has tons of both historical information on swords as well as basic techniques and movements for Western swordsmanship.
The Secret history of the Sword by Christopher Amberger, a very very interesting book written by a former fencing champion, he focuses a great deal on the difference between historical swordsmanship and modern fencings as well.
The Codex of Wallerstein, its hard to find but if you can get a copy of this historical manuscript on the usage of swords its well worth it, even better, if you can get one thats interpreted for you.
Secrets of German Medieval Swordsmanship, Sigmund Ringeck's Commentaries on Liechtenauer's Verse, once again another good book on swordsmanship.
Well I hope these helped, good luck.