http://www.nytimes.com/2015/08/23/magazine/the-creative-apocalypse-that-wasnt.html
Interesting article as it corrects misconceptions of a few years back by looking at the data. This is based on tools from EMSI, who are a D shop.
Congratulations to EMSI, and it would be great to hear more from them sometime about how they use D (I know they spoke at dconf once)