The VOIDRUNNER'S CODEX is LIVE! Explore new worlds, fight oppressive empires, fend off fearsome aliens, and wield deadly psionics with this comprehensive boxed set expansion for 5E and A5E!
This is the one on using a data projector to project battlemaps on the tabletop during play. It made the front page of ENWorld - as well as the frong page of Slashdot - so I think it counts
I like to think that this thread I started in some small way helped PDF publishers collaborate with each other and get their own online stores up and running: