Hi all,
I have written a blogpost about our positive(!) experiences with organizing a video-challenge on the UNESCO World day for Audiovisual Heritage. You can find it here:
http://www.beeldengeluid.nl/en/blogs/research-amp-development-en/201412/vide...
Most notably, over 400 videos were added to articles within three weeks. We're very open to suggestions how we can improve these type of 'contests' and perhaps there are people who would like to join in for next years' World Day of Audiovisual Heritage (7th October 2015)? :)
Best, Jesse