Search keywords like "Latino", "Hispanic", "Chicano", etc. in these online encyclopedia compilations.  Contain many articles on a wide variety of subjects.  Good starting point for research.

Developed cooperatively with scholars and librarians worldwide, Oxford Bibliographies offers authoritative research guides.  Contain annotated, critical bibliographies and overviews.  Dozens of ready made bibliographies from topics like bilingual education, comics, Latino politics, Latino humor, Machismo, Spanglish, Telenovelas, Pan-Latinidad and Latina Political Participation.