Spatial Data Infrastructures (SDI) now are serving as the foundation for most geospatial documentation, analyses and communication. To demonstrate the enormous wealth and width of spatial information today available through SDI services, ACA*GIScience has compiled and published a demonstrator application highlighting Central Asia, now available via
> http://arcg.is/1Yaxfhe
This year, we look forward to celebrating GIS Day with a special emphasis on SDI, motivating all geospatial specialists to leverage its potential and to learn how to work with services-based architectures for geospatial application domains!