Who doesn't love sharp pointies?
As part of the complete customizability goal for my game I started looking up different kinds of weapons. I never found a source that really suited what I was looking for until one day when I was browsing through the bargain books at Borders.
The Illustrated Encyclopedia of Swords and Sabres by Harvey JS Withers is awesome.
It provides a description of the weapons, an explanation of how they were used, and variations of design. On top of all that, there is fun historical information and lots of cool pictures.
I was able to find interesting new weapons to add to the list I got from open source materials and I also have plans to include weapon modifications that have function as well as fluff.
I don't have Knives, Daggers and Bayonets yet but I took a peek at it while I was killing some time at Half Price Books and it looks like it will be just as useful.