O'Reilly Network: PHP and PostgreSQL Open Sesame [October 03, 2002] "In 4 or 5 months, Sesame Workshop's sites were rebuilt using PHP and PostgreSQL, running under Apache and Linux on Intel-based hardware. The new sites also use add-ons popular in the PHP community: PHP Accelerator for caching compiled scripts, JPCache for caching generated pages, and ADOdb for database access and query caching."