GolfCollector.com Save
Message board to discuss collecting golf scorecards.
http://golfcollector.com   

TennisCans.com Save
Vintage tennis ball can and container database. Includes message board, photos, manufacturers, guide to cleaning cans, age, history, and type.
http://www.tenniscans.com   

The Olympic Collectors Commission Save
Features stamps, coins and memorabilia items in a virtual gallery, including items from 1896 Athens and forward to Sydney 2000. Also offers event list and related links.
http://www.collectors.olympic.org/   

Washington State Sports Collectors Association Save
Sponsors an annual show in Seattle. Includes club meeting times, show information and dates, dealer profiles, and membership information.
http://www.wssca.net/   

Forum - Usenet rec.collecting.sport.misc

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