This might be of interest to people in London, or active with graphics software:
"The eleventh annual international Libre Graphics Meeting 2016 will take
place Friday 15th until Monday 18th April 2016 in London, UK. This
yearly event is an occasion for teams and individual
contributors/artists involved in Libre Graphics to work together, to
share experiences and to hear about new ideas. By Libre Graphics we mean
Free, Libre and Open Source tools for design, illustration,
photography, typography, art, graphics, page layout, publishing, 3D
modelling, digital making and manufacture, cartography, animation,
video, interactive media, generative graphics and visual live-coding.
The Libre Graphics Meeting is not just about software, but extends to
standards, file formats and actual use of these in creative work. LGM
has become the place in which they can discuss their projects,
coordinate their efforts and, crucially, to meet in person. Participants
in the LGM include developers, designers, academics and activists from
around the world, who are all passionate about Free/Libre graphics
software and technology."
The submission deadline for presentations is coming up soon, on the 10th January.