Those of you that are DMs out there, how many of you have created your own dungeon or adventure or encounters? *raises hand* You're certainly not alone. A quick look around at someplace like Kickstarter shows that lots of people have had that idea. Many of us set our adventures in the Forgotten Realms, one of the most popular Dungeons & Dragons settings. Well, have you ever wanted to try and sell your adventure? Wizards of the Coast is here to help you do so, if you want.
The Dungeon Masters Guild lets you self-publish your own adventures. You can give them away for free, or you can charge for them. The money is split between you, 50/50, with Wizards of the Coast and OneBookShelf. Currently, the only adventures being accepted are those set in the Forgotten Realms using the 5th edition Dungeons & Dragons rules set, but they allude to having more options available in the future.