At the Chaos Communications Congrass a few years ago I met with the Free Software Foundation Europe (fsfe.org) and was impressed with their work. They advocate for free software and are working on a campaign called Public Money Public Code (publiccode.eu).
TOG will be hosting a meetup for members of FSFE and anyone interested in free software on Monday, 20th January at 7pm. Everyone is welcome, details about the venue on www.tog.ie.