Wizards Of The Coast has made the Forgotten Realms D&D setting available for self-publishing! D&D DMs can publish adventures, monsters and the like, via OneBookshelf, free or for pay receiving 50% of the profits while Wizards and OBS split the other half. Not intended for big publications, just the kind of things a DM might put in a blog.
They also released the Fifth Edition SRD for those wanting to use the OGL.
This is a very interesting development, just like making the Fifth Edition core rules free to play. It’s similar to the Amazon licensed fanfiction idea, but maybe a better fit for use.