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.

Jan. 16, 2013, analysis of The Pew Forum on Religion & Public Life survey on American opinions about abortion and the Roe v. Wade decision. Article includes link to full survey report.

Jan. 21, 2013, NBCNews.com article citing an NBC and Wall Street Journal poll which shows for the first time that the majority of Americans want abortion to be legal. The article includes a link to the full poll results.

Pierrette Hondagneu-Sotelo is a sociology professor at the University of Southern California and an expert on issues of illegal immigration and the illegal-immigrant rights movement in the United States. She is the author of Doméstica: Immigrant Workers Cleaning and Caring in the Shadows of Affluence.