WikiSym has changed it's named to OpenSym and this year it will take place on 27th – 29th August in Berlin. It's an annual symposium about open collaboration. The list of tracks includes:
- Open access research - Open data research - Open education resources research - Free, libre, and open source software research - IT-driven open innovation research - Wikipedia research - Wikis and open collaboration
They issued a call for papers last week so if your interested, the page on their website http://www.opensym.org/os2014/submission/ about submissions has more details including the array of deadlines for different tracks.