Please note: the 2011 calls are closed.
The calls for Northern Spark 2012 can be found here:

http://2012.northernspark.org/participate/open-calls

Northern Lights and our partners are sponsoring more than 20 calls for participation in the Northern Spark nuit blanche. Some are based on specific locations, some on specific media, and others are free form. Any artist – or in the case of some of the calls, curator or organization or business – may submit a proposal, but all projects must take place within one of the 6 Festival Zones.

Questions? opencalls@northern.lights.mn