Open Geospatial "Stack"

• OGC Service Oriented Architecture Standards
• Web Mapping Service (WMS)
• Web Feature Service (WFS)
• Web Coverage Service (WCS)
• Styled Layer Description
• Service Implementations
• MapServer
• GeoServer
• Spatial Databases
• PostGIS
• MySQL Spatial
• AJAX Web Map Clients
• MapBuilder
• OpenLayers
• Desktop Clients
• GRASS
• QGIS
• uDIG, JUMP
• NASA WorldWind et al.