A mail-order bride is a woman who lists herself in catalogs and is selected by a man for marriage.
In nineteenth-century America, mail-order brides came from well-developed areas on the Eastern seaboard to marry men in Western frontier lands.
One of the biggest international dating sites, based on the market share, is Anastasia Date.
International marriage agencies are frequently referred to as "mail-order bride" agencies.
In return, the women would write to the men and send them photographs of themselves.
Key variables determining the relationship between migration and marriage were demographics, legal policies, cultural perceptions and technology.
Many women wanted to escape their present way of living, gain financial security and see what life on the frontier could offer them.
Most of these women were single, but some were widows, divorcées or runaways.
Many of these marriage agencies are based near women in developing countries (such as Ukraine, Russia, Colombia, Brazil, India, China, Thailand, and the Philippines).
International marriage agencies encourage women to register for their services, and facilitate communication and meetings with men from developed regions of North America, Western Europe, South Korea, Japan, Australia, and New Zealand.
Mail-order brides work with "international marriage agencies".