There are some other projects in which I have collaborated (or at least I tried to), but I haven't been collaborating for a while:

• Apache Jakarta Commons Configuration: Library for Java developer which offers advanced features for reading properties files or access XML files as if it where properties files. I've sent several patches which have been kindly accepted.
• GNOME Hispano (Spanish): Group of people dedicated to promoting GNOME within the spanish speaking community. I was the webmaster and helped convert from a static website to a dynamic website based on XML + XSLT.

Agile Spain is a group of people who believe in Agile Methods as a better way to perform the most usual type of project that are done nowadays. As any other methodology it can be well or bad understood, well or bad applied. For this reason, our aim is to become a center of information for both theory and practice within the spanish world.

I'm one of the four founding members of Agile Spain along with Cesar Colado, Luis F. Canals and Enrique Comba. I'm currently one of the managers of its website and community along with Jesús Pérez, Ismael Ferrer and Carmen Vidal.

• Website: http://www.agile-spain.com
  

I started the project as part of the PhD Thesis at the Universidad Politecnica de Madrid. My aim was to provide a centralized place to document and discuss about the best way to run development projects on a collaborative ways. The first and best examples of collaborative development models are in the free software world although I believe that they can be applied elsewhere as long as the sharing ideals also exist.

• Blog: http://collaborativedevelopment.blogspot.com/
• Wiki http://www.jorgeferrer.com/collaborativedevelopment
  

APICE is an spanish association, sited in Madrid, which works to include children in risk of social exclusion. They use computing classes as a means to teach both social subjects and technology that will be useful for them in the future. I'd like to highlight that they have recently renewed its software infrastructure to use only free software. Each computer used by the children is equiped with GNU/Linux.

My main collaboration with APICE is the development and mantainance of the website, which is based on Drupal.

• Home page: http://www.asociacionapice.org (Spanish)
  

EasyConf is a library to access configuration of software components and applications. It defines simple conventions to make it easier to use. It was born in a portlets-based portal and has several features useful for this and similar environments.

EasyConf aims to make easy the development of highly configurable Java applications. You can start with a very simple scheme and when you need it you'll be able to add powerful functionality such as XML files, support for several environments or aggregation of componentes.

I started the development of EasyConf in 2004 with some collegues at Germinus. We felt the need of a tool that would help us deploy different configuration parameters in different deployments. Soon after EasyConf went OpenSource and its development was greatly accelerated. Currently all the expected feature set is complete and its development has slowed down a little.

Liferay is an Open Source portal platform. It supports JSR-168 and comes with many useful bundled portlets. I've evaluated eXo and JBoss Portal and nowadays I think Liferay is better as a whole.

I started working with Liferay through my involvement in the EducaMadrid (spanish) project. Since then I've been able to know the code well, meet it's main developer Brian Chan and contribute several interesting functionalities and ideas such as using the portlets to build websites, themes, etc.

• Home page: http://www.liferay.com