Sophisticated open-source Object-Relational DBMS supporting almost all SQL constructs, including subselects, transactions, and user-defined types and functions. Completely free database

Feature list and downloads for a web-based administration tool.[Open Source, GPL]

Spatially enables the server, allowing it to be used as a backend spatial database for geographic information systems (GIS).

A relational database management system based on PostgreSQL. It adds compatibility and performance features.

A version of Postgres that has been optimized for the Red Hat Linux distribution.

Borland Delphi/C++Builder component set for direct access to PostgreSQL without BDE or ODBC.

Training and support for development, tuning, and replication. Site includes course outlines, pricing, and schedules.

A searchengine for PostgreSQL-Documentation. Sample application for Tsearch2.

Commercial support for the object-relational database management system, PostgreSQL, as well as full database hosting.

Automated creation of PostgreSQL documentation in Dia, Docbook, HTML, and GraphViz formats.