Pål Brattberg
More ideas from Pål
http://www.fair-play.sk/hackday/

http://www.fair-play.sk/hackday/

Spotify Hack Week 2013

Organizing a hack week

http://openhacklondon.pbworks.com/

http://openhacklondon.pbworks.com/

Hackdays Canada

Hackdays Canada

Mars Energy Hackathon 2013

Mars Energy Hackathon 2013