Indigenous cultures throughout the Americas and the rest of the world have to deal with problems of cultural assimilation, migration, and dissemination of their populations. Some of them, in countries such as Argentina, Chile, and Nigeria, have developed radio programming to maintain home languages; gain access to health, education, and employment information; greet friends and relatives; and re-create traditional culture under circumstances of modern pressures but also to open up opportunities. This article explores the capacity and awareness of these contributions in a multicultural world. (Contains 14 notes.)