BladeForums.com Save
Online publication with newsletter and discussion forums. Includes knife collecting, sales, trading, use, care, and safety issues.
http://www.bladeforums.com/   

Blade Linx Save
Topics include safety, laws, buying and selling.
http://www.bladelinx.com   

KnifeForums.com Save
Message forum for knife enthusiasts to ask questions and discuss topics with peers. Includes archives of past discussions.
http://www.knifeforums.com/   

Ramanon's Knife Forums Save
Custom, brand names, collectibles.
http://forum.ramanon.com/forumdisplay...   

Yahoo Group: Custom Knife Save
Provides message forum or chat for custom knife hobbyists to discuss favorite knives, with links included.
http://groups.yahoo.com/group/customk...   

Yahoo Group: Gil Hibben Save
Discusses fantasy and functional knives created by custom artist Gil Hibben.
http://groups.yahoo.com/group/theworl...   

Yahoo Group: Knife Collectors Save
Discusses antiques, Bowies, modern, custom, and pocket knives. Buy, sell, trade, and knife shows.
http://groups.yahoo.com/group/knifeco...   

Forum - Usenet rec.knives

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