PGCon2013 - includes video

PGCon 2013
The PostgreSQL Conference

Stephen Frost

Stephen Frost is a Sr. Database Engineer with Resonate, a
cutting-edge online advertising company. As a PostgreSQL Major
Contributor, he implemented Roles in PG 8.1, Column-Level privileges
in PG 8.4, and has contributed to PL/PgSQL and PostGIS.