There is a new survey over on Survey Monkey on Open Source Database usage. If you use a database, whether open source or not, you should make your voice heard.
Survey on Open Source Databases
In other news, rumor has it that Sun has consolidated their entire database business under Marten Mickos, former CEO of MySQL. That means that Marten is now responsible for JavaDB and PostgreSQL, along with MySQL for Sun Microsystems.
This is actually very interesting. The head of MySQL running their PostgreSQL business. Read nothing into this people. Marten will do an excellent job with ALL of the databases. Though his heart may remain with MySQL, the size of his wallet will depend on making all three databases successful. And, Marten is a fan of all open source databases and open source in general.
I think this was a smart move for Sun and will be good for Sun's PostgreSQL business.