eXtensible Markup Language (XML)

ArcGIS

ArcGIS is a suite of software that comprises of Desktop GIS, Server GIS, Mobile GIS, and ArcGIS Online. ArcGIS is a platform for building a complete geographic information system (GIS) that lets you easily create, edit, and analyse geographic knowledge on the desktop; publish data, maps, globes and models to a GIS server and/or share them online; and use them on the desktop, on the Web, or in the field.

Features:
View and query maps

Manipulate shapefiles and geodatabases

Data manipulation, editing and analysis

Mobile device enabled

GeoRSS

Geographically Encoded Objects for RSS feeds. GeoRSS was designed as a lightweight, community driven way to extend existing feeds with geographic information.
As RSS and Atom become more prevalent as a way to publish and share information, it becomes increasingly important that location is described in an interoperable manner so that applications can request, aggregate, share and map geographically tagged feeds.RSS Map of Digital Humanities centers