The Geoportal Server 1.2 now supports MySQL and PostgreSQL 9.1
NOAA and the Geoportal
This ArcNews article describes how NOAA's National Climatic Data Center (NCDC) uses Esri's geoportal technology to make its geospatial data available to scientists and users all around the world.
Esri's ArcGIS for Server Geoportal Extension
Marten Hogeweg, Esri's product manager for the ArcGIS for Server Geoportal extension, talks about how the Geoportal extension assists organizations by making geospatial data and services available over the Internet.
The GeoSUR Initiative
Eric Van Praag, regional coordinator of the GeoSUR Program, discusses the initiative to integrate and disseminate spatial data throughout South America.