WSJ 17/04/2012 http://blogs.wsj.com/tech-europe/tag/carsten-frien/ http://blogs.wsj.com/tech-europe/tag/madvertise/
GigaOm 16/04/2012 http://gigaom.com/2012/04/17/mobile-ad-firm-madvertise-buys-turkeys-mobilike/carsten-frien/
