The World Language Mapping System (WLMS) is the result of over 15 years of collaborative work between Global Mapping International (GMI) and the Summer Institute of Linguistics (SIL), to map the over 6,800 languages described in SIL's 14th edition Ethnologue.
GML or Geography Markup Language is an XML based encoding standard for geographic information developed by the OpenGIS Consortium (OGC). The objective is to allow internet browsers the ability to view web based mapping without additional components or viewers.
Getting to Know ArcGIS Desktop, Second Edition contains conceptual material followed by scripted software exercises. Readers acquire skills in a variety of areas -- map symbology, data overlay, map projection, and data conversion, to name a few -- as they make maps and analyze geographic data.
World maps with 500 megabytes of geographic and demographic data covering the entire world. Shows you how to download ArcExplorer and find links to other GIS sites and data. Tutorial exercises and map gallery.
The book is illustrated in full color and comes with a companion CD-ROM that includes a working copy of ArcExplorer, ESRI's easy-to-use GIS data viewer, a GIS tutorial, and links to hundreds of map-enabled Web sites and data repositories.
ArcCanada is a large database containing a number of cartographic and thematic layers, at provincial, national and local scales. The data has been broken down into three broad categories: national, provincial and special.
Note that some layers are free to download. Others must be requested through the Map and Data Library. All roads can be found for public use at this url http://gis.ny.gov/gisdata/inventories/details.cfm?DSID=932
Olary Region Geoscientific GIS
Curnamona Province MGA GIS DVD: Version 2 of the Curnamona Province dataset was produced as a co-operative venture between Primary Industries and Resources South Australia (PIRSA), GA (Geoscience Australia) and DMR (New South Wales Department of Mineral Resources).