NOAA Digital Coast is a free US government portal offering coastal geospatial data, tools, training, and case studies for coastal managers and researchers.
ALOS World 3D is a free global digital surface model dataset from JAXA, offering 30-meter elevation data for mapping, research, and 3D geospatial work.
Bhuvan is ISRO's free geospatial portal offering Indian satellite imagery, thematic maps, and downloadable remote sensing datasets through a web interface.
INPE is Brazil's national space research institute, offering public satellite imagery and remote sensing data through its catalog and distribution services.
DigitalGlobe offers sample commercial satellite imagery products for previewing geospatial data resolutions, bands and formats before licensing full datasets.
A web-based reference tool for looking up Qing dynasty official positions, ranks, and bureaucratic structures, useful for historical research and education.
ArchaeoGIS is a web-based map of archaeological sites in Taiwan, offering spatial browsing of historical and heritage locations for research and learning.
