These are some of the presentations I have done in conferences during the years:
2011-02-01 | presentation | ES | PgDay Latinoamericano 2011 - Havana, Cuba
A general presentation about different aspects and components we have to take care of when securing the data in a PostgreSQL database.
2008-04-08 | presentation | EN | GoOpen2008 - Oslo, Norway
A general presentation about PostgreSQL database for the GoOpen2008 conference in Oslo.
2005-10-13 | presentation | EN | NUUG - Oslo, Norway
An extended presentation about PostgreSQL, the history of the project, features, administration and the most important tuning parameters.