If you're looking for general information about Mexico, try checking out a book! The libraries at UNC have a number of good books relating to the culture and history of Mexico. Here are a few books including the locations and call numbers, to get you started:

Mexico: A Guide to the People, Politics and Culture
(2003)
Undergrad Library, Davis Library:
F1208 .R828 2003
The Mexicans: A Personal Portrait of a People (2002)
Davis
Library: F1210 .O84 2002
Good Neighbors: Communicating with the Mexicans (1997)
Electronic book - access
from catalog link
Changing Structure of Mexico:
Political, Social, and Economic Prospects (2006)
Davis Library: HC135 .C44
2006
The Global Etiquette Guide to Mexico and Latin America:
Everything You Need To Know for Business and Travel Success (2002)
Undergrad Library:
BJ1838 .F673 2002
Mexico: A History(1985, 1996)
Electronic book - access from catalog
link
Also, Undergrad Library, Davis Library: F1226 .M64 1985
Using the UNC-Chapel Hill Libraries Catalog, you can search using the term "Mexico" to locate more books. Tip: searching "Mexico" as an "LC Subject" will give you a more targeted pool of records than by simply searching "Mexico" as a Keyword.