At Pinterest we have a graph db developed internally called Zen. If you just search on google you’ll find a lot of docs and presentations. It’s used all over th

At Pinterest we have a graph db developed internally called Zen. If you just search on google you’ll find a lot of docs and presentations. It’s used all over the places, if you search in our engineering blog you’ll see it mentioned constantly. In terms of applications using graph, my favorite one is our recommendation engine: https://medium.com/pinterest-engineering/an-update-on-pixie-pinterests-recommendation-system-6f273f737e1b https://medium.com/pinterest-engineering/an-update-on-pixie-... Another very interesting (and very recent) application of graphs in security is Cartography by Lyft: https://github.com/lyft/cartography https://github.com/lyft/cartography (I’m on the go, please excuse the lack of links for Zen)