» ARRL: Field Day Package    Annual event held on the fourth full weekend in June. Includes rules, frequencies, and goals.    http://www.arrl.org/contests/announcements/fd/

» Dayton Hamvention    The world's largest topical conference and product exhibition.    http://www.hamvention.org/

» Hamfest and Convention Database    Provides access to listings of all known ham conventions, swap meets and hamfests.    http://www.arrl.org/hamfests.html

» The Annual Winter SWL Festival    The largest annual gathering of shortwave listeners in North America, near Philadelphia, Pennsylvania in March.    http://swlfest.com/