On February 18, 2010 at 2 p.m. ET there was the "Open Source Database: One Size Does Not Fit All" featuring industry analyst Judith Hurwitz.
Coming up is a two-part webinar series called "Mastering PostgerSQL Administration." Presented by Bruce Momjian, it will cover all aspects of PostgreSQL administration, installation, security, file structure, configuration, reporting and backup. The first part is on March 3, 2010 at 1 p.m. ET and the second part will be on March 17, 2010 at 1 p.m. ET.
Also on March 4, 2010 at 1 p.m. ET is "Beyond PostgreSQL: A Look Inside Postgres Plus Advanced Server" focused on delivering a rock-solid foundation of PostgreSQL and giving features not available in the community edition. It will also cover the upcoming features of Postgres Plus Advanced Server.