Use this link for results from the keyword seasrch "English Language Learners" filtered for the latest ten years worth of peer reviewed articles from the "Articles & More" database also known as Summon.
See this link for results from searching the term "English Language Learners" in the database of classroom demonstration videos called "Education in Video."
And see this link for results from searching for the keyword "ESL" in the database of documentaries called "Academic Video Online."
Resource sites as well as examples of schools with exemplary ESL initiatives:
Demographics on your school:
Philadelphia School District "School Finder" page - find detailed records on individual schools and school catchment areas.
National Center for Education Statistics "Global Locator" - look up individual schools by name, or groups of schools by zip code, city etc
Census Language Mapper - Look up the languages spoken in your area.
SABINS data for broader research projects requiring geographic information systems (GIS) files covering catchment areas for the whole United States. (limited to 2011). Contact your librarian if you require assistance.