Collecting
Collectors.org - http://collectors.org/
An online collecting club directory and flea market directory. Read information on upcoming collecting club shows, events, conventions, and much more.
Trajan Publishing - http://www.trajan.com/
Canada's leading source for information about collecting.
Collectors Society - http://www.collectors-society.com/
A community where both beginner and advanced collectors can learn more about their favorite hobby and have access to collector services in grading, education, products, and other areas.
Coininfo.com - http://www.coininfo.com/
Provides up to date information on spot prices, charts, and individual coin prices.