» Flags of the World    Very large noncommercial source on vexillology. Searchable database, glossary, bibliography, and related links.    http://www.crwflags.com/fotw/flags/

» New England Vexilloligical Association    Dedicated to the scholarly pursuit of flag research between local vexillologists at Washington, Maine.    http://www.midcoast.com/~martucci/neva/

» North American Vexillological Association (NAVA)    Nonprofit organization dedicated to the promotion of vexillology, the scientific and scholarly study of flag history and symbolism.    http://www.nava.org

» The Flag Institute    World's leading research and documentation centre for flags and flag information.    http://www.flaginstitute.org/