Let me suggest that you visit the "Mexico folder" link below, of a new Family Search (Research Wiki - Beta) page that contains all-around information about finding ancestors in Mexico.

It includes about 50 recent Articles (written this year by LDS family history experts), - - - with descriptive information, links and references with a high quantity of research sources, bibliographies, disertations, monographs, lessons, and other concepts relating to research about ancestries in Mexico.

http://www.familysearchwiki.org/u-s-and-canada/mexico/

Happy browsing, and good hunting !

Efrain Conrique
San Diego, California