http://front-trends.com/
Front-Trends is a 3-day conference for web and mobile developers to discover the latest trends, technologies, and ideas in front-end development. For over 5 years, Front-Trends has brought together people from all over the world who are shaping the face of the internet and the future of human-technology interaction. Front-Trends 2015 took place on May 6-8, 2015 in Warsaw Poland.