4 links
American Pencil Collectors Society
pencilcollector.org
An organization of pen and pencil collectors from the USA and around the world. A brief history, description, and membership information.
Michigan Pen Collectors
michpens.com
A collectors club with newsletter, pen show calendar, membership information, and links to other pen sites.
Pen Collectors of America
pencollectors.com
A non-profit organization to promote interest in fountain pens and pen collecting, and the history, manufacture and use of writing instruments.
Writing Equipment Society
esonline.org.uk
An organization devoted to the conservation, study, and collection of writing instruments and accessories. Includes articles about pens and pencils, and club information.