Instituto Panamericano de Geografía y Historia and Status of Mapping in the Americas
Government Cartography from Odden's Bookmarks (national listings)
Inter-American Geospatial Data Network
Costa Rica GIS Data Clearinghouse
Environmental Data-Sets Available On-Line (some Latin American)
Global Resource Information Database
Magellan Maps of South America
Perry-Castañeda Library Map Collection from U. Texas (this looks like a good set of CIA maps in jpg and gif)
Report on Preliminary Inventory on Environmental and Sustainability Data Availability, Databases and Digital Maps for Latin America and the Caribbean
browse digitized maps from UC Berkeley (some nice historical maps of Mesoamerica, among others)
Georeferenced Population Data Sets of Mexico (ftp://ftp.ciesin.org/pub/data/Mexico/ for the data)
INEGI (Mexico's National Institute of Statistics, Geography and Information --mostly 1990s statistics)
LANIC Latin American statistics, by country --very mixed, but see 'Regional Resources' at the end, and Latin American Regional Resources
Latin American Statistical Sources from Cornell
Latin American Statistical Sources from Nanyang (!)
(a challenge here is finding the data to plot)
(one does this sort of map if one has data associated with map coordinates, and there's not a lot obviously available for most Latin American countries)
(these would probably require digitization of paper maps, or might be created from orthophotos, etc.)
(the information for these would mostly come from paper maps, but some pretty classy things could be done with online versions, including hot links to illustrations, text, etc.)
This is a broader question than just David's classes --and has to do with venturing further into the realms of electronic information. It seems obvious that we (and/or the C School) will venture in these directions, and that the map server will maintain and deliver a variety of different sorts of maps, in addition to those of Rockbridge and environs that are my initial primary concern.
While I think of it, here's a list of our library holdings of the Country Studies volumes for Latin America --surely the best general-purpose descriptive summaries available.