It looks like Artsy.net is using it, according to this blog post from one of their developers: https://ashfurrow.com/blog/lets-steal-other-developers-best-ideas

It looks like Artsy.net is using it, according to this blog post from one of their developers: https://ashfurrow.com/blog/lets-steal-other-developers-best-ideas/ https://ashfurrow.com/blog/lets-steal-other-developers-best-...