The document outlines Spain's approach to overcoming obstacles for a public sector information (PSI) explosion. It discusses establishing frameworks that make all public information reusable by default through open standards formats and justifying any exceptions. It also notes obligations to publish data in machine-readable formats and efforts to foster a culture of PSI reuse through data catalogues, open data portals, and linked data infrastructures. The document provides examples that Spain's open data community is growing across government levels and spurring new business and applications. It identifies establishing a single open data license and new legal frameworks at the EU level as critical issues to further the PSI explosion across Europe.