The GEOSS Component and Service Registry
This registry includes mechanisms to register components and have them approved by the GEO Secretariat, to register services and associate them with GEOSS-recognized standards -- and special arrangements for implementations using non-recognized approaches. A taxonomy of standards types is also proposed to assist in the discovery and classification of GEOSS service implementations.

The GEOSS Standards and Interoperability Registry
This is a repository for information about standards and other interoperability arrangements that have relevance to the implementation and operation of GEOSS. In the Standards and Interoperability Registers you will find those standards that have been formally adopted for GEOSS, standards that are currently in use by GEOSS components, although not yet formally sanctioned, and standards that are potential candidates for use in GEOSS.

OGC Registered Products
This is a self-registry for geospatial products offered by companies and agencies that conform to OGC standards.

Geographic Data Portals and Repositories

Numerous online facilities provide access to a variety of geographic data sources, both commercial and freely available, but availability and access vary considerably from nation to nation. Specific searches are often in order. We are unable to recommend a single meta portal that leads to an all encompassing listing of geographic data offerings but here are a few starting points suggested by members:
UNGIWG Data Links
CIESIN World Data Center
UNEP Geodata Portal
Global Change Master Directory
Terra Viva! Geoserver
Geospatial One Stop
The Geography Network
GWSP Digital Water Atlas

Spatial Data Infrastructure Web Links
Links to other SDI web sites are provided here organized under the following categories: Other Global Initiatives, Regional SDI's, National SDI's, Local SDI's, and Other Links. If you have additional links to suggest, please send them to onsrud@gsdi.org