GeoGebra conference in 2014. We will meet in Budapest, Hungary on 23-25 January 2014 for a promising conference: http://events.geogebra.org/budapest2014/
Plenary talks will be delivered by Markus Hohenwarter, Zsolt Lavicza , Celina Abar, Tomas Recio, and Balazs Koren. Also, there will be parallel sessions with talks and workshops.
The deadline for abstract submission is 1 December and registration is already open:
http://events.geogebra.org/budapest2014/registration/ Payment methods will be announced later, but register for early bird fees and to receive further information.