CIA World Factbook provides information on geography, people, politics and other general information.
The Government of Canada offers useful information on working with and communicating with groups from around the world.
For details on Styles of Address, i.e. how to address people such as members of the Royal Family, Federal and Provincial Government dignitaries, foreign dignitaries, etc. please visit the Government of Canada’s Canadian Heritage site.
For a comprehensive guide on how to address a wide range of people, visit The Protocol School of Washington’s On-Line Guide to Forms of Address.