Flags
Flag Institute - http://www.flaginstitute.org/
A thriving membership-based flag organization - the largest in the world, with members on all six continents - and the national vexillological organization of the United Kingdom.
FlagsOfAllCountries - http://www.flagsofallcountries.com/
Feature animated flags of all the countries of the world.
National-Flags.com - http://www.national-flags.com/
Presents animated international flags through flash technology.
North American Vexillological Association (NAVA) - http://www.nava.org/
Pursues vexillology as the scientific study of flags by bringing into closer cooperation people interested in all aspects of flags such as their history, significance, specifications, use, and manufacture.