The Zolberg Center on Global Migration is at the New School University in New York City.

The Immigration History Research Center is based at the University of Minnesota. It is an interdisciplinary research center that brings together a variety of scholars. Erika Lee is director.

FindLaw offers links to the abortion laws for every state.

The Immigration & Ethnicity Institute at Florida International University has studied issues of religion and immigration.

The Center for Religion and Civic Culture at the University of Southern California has a principal focus on the study of religion and immigration and its various manifestations. Richard Flory is executive director, and Megan Sweas is communications director.

The Center for Immigration Studies is a nonpartisan research organization in Washington, D.C. Many of its researchers have concluded that current high levels of immigration are harming the country. The organization says it’s not anti-immigrant, however; instead, it favors a policy of fewer immigrants but a “warmer welcome for those who are admitted.” Mark Krikorian is executive director.

The Center for Immigration Research is housed in the sociology department at the University of Houston and previously had a Religion and Migration Project.

The Elat Chayyim Retreat Center is a place for spiritual contemplation for Jews. During the Labor Day weekend of 2006, the retreat moved from its longtime home in Accord, N.Y., to Falls Village, Conn.

The Interfaith Immigration Coalition is a group of faith-based organizations that work for immigration reform and justice. Its umbrella covers 500 national and local faith-based organizations and individuals and includes Mennonite, Jewish, Catholic, Christian, Quaker and Unitarian groups.