International Omas Pen Collectors Club
Official home for the Italian Omas collectors. Both English and Italian versions are available.

Society Of Inkwell Collectors
Dedicated to establishing and enhancing the hobby of collecting inkwells and writing accessories. Provides its members with an opportunity to meet, communicate, and share information with inkwell collectors worldwide.

New York City Pen Show
Features an international event for collectors, dealers and manufacturers with exhibits, sales, and demonstrations. Held in September.

Pen Collectors of America
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 of Australia
An organization devoted to the conservation of writing instruments and accessories. Includes articles about pens and pencils, and club information.

American Pencil Collectors Society
An organization of pen and pencil collectors from the USA and around the world. A brief history, description, and membership information.

Michigan Pen Collectors
A collectors club with newsletter, pen show calendar, membership information, and links to other pen sites.

The Writing Equipment Society
For those interested in the historical and collecting aspects of writing instruments, with articles and membership information.

International Fountain Pen Club
For collectors of the Italian Omas fountain pens, and other pens, with features and benefits of membership. Both English and Italian versions are available.