Started last summer. http://adage.com/article/digital/bmw-runs-ads-medium-twitter-founders-platform/294321/ http://adage.com/article/digital/bmw-runs-ads-mediu

Started last summer. http://adage.com/article/digital/bmw-runs-ads-medium-twitter-founders-platform/294321/ http://adage.com/article/digital/bmw-runs-ads-medium-twitter...