From the American Immigration Council:
Immigration 101 at https://www.americanimmigrationcouncil.org/about-immigration/immigration-101/
How the US Immigration System Works at https://www.americanimmigrationcouncil.org/fact-sheet/how-united-states-immigration-system-works-fact-sheet/
Immigration Reform at https://www.americanimmigrationcouncil.org/about-immigration/immigration-reform/
Economic Impact at https://www.americanimmigrationcouncil.org/about-immigration/economic-impact/
And there are many other topics to explore on this site.
Immigrants in New Mexico at https://www.americanimmigrationcouncil.org/wp-content/uploads/2025/01/immigrants_in_new_mexico.pdf
https://immprof.com/
Immigration Enforcement Data
Current Detention Reports Nationwide at https://detentionreports.com/
Immigration Enforcement Dashboard at https://enforcementdashboard.com/
Detection Pregnancy Tracker at https://detentionpregnancytracker.com/
ICE Detention Mortality Tracker at https://detentionmortality.com/
Institute for Immigration Research History of American Immigration at https://iir.gmu.edu/historical-timeline
Nuts and Bolts of U.S. Immigration Law, an online course from the University of Pennsylvania offered through Coursera at https://www.coursera.org/learn/us-immigration-law
Classes offered by Santa Fe lawyer Allegra Love at https://www.legslovelawyer.com/community-education