This paper offers a conceptual "map" of issues and approaches in immigration research and illustrates features of the map with the significant contributions of Latino Studies to immigration research. One axis of the map concerns the time line of various waves of immigration. Although research on immigrants and immigration processes was a foundation of American sociology, Latino immigrants were largely ignored until the 1960s. In 1964, two Mexican social scientists published their research on illegal Mexican immigrants and on the "bracero" (migrant worker) program. Since then, Latino scholarship has contributed to the history of Spanish-speaking groups in the United States; the history of regions heavily impacted by Latino immigration; and the development of two major conceptual models of ethnic relations in America--acculturation and internal colonialism. The other axis of the map concerns levels of analysis: micro-level factors that drive individual behavior versus structural perspectives that emphasize major economic or political forces driving migration. The map's "Blue Highways" consist of research themes in Latino scholarship such as the heterogeneity of Latino immigrants, immigrants' involvement in small businesses, impact of migration on sending communities in the underdeveloped world, female labor migrants, and poverty among U.S. Latino immigrants. "Unpaved roads" or research needs are also suggested such as links between micro and macro levels of analysis, the "brain drain" from Third World to First World countries, and the distinctive issues of refugees and exiles. (Contains 69 references.) (SV)