PGStats is a database that collects statistics on Postgres clusters via the pg_stat* views and stores them in a historical archive.
The PGStatsproject is a PostgreSQL Community project that is a part of the pgFoundry.
The pgFoundry page for the project is at http://pgfoundry.org/projects/pgstats, where you can find downloads, documentation, bug reports, mailing lists, and a whole lot more.
