Hello, my name's David Greenwood. I'm currently taking some time out from work and spending 45hrs learning to fly planes. Previously I worked at Splunk . My blog, Travel Stats , has over 10k weekly subscribers. I'm also writing a book called Product Gems . I am a passionate advocate of open data, and manage Open Hart . I'm often found playing with other side projects on Github too. Contact me on Twitter or LinkedIn . You can also email .