About the site:
Dungeon Share is a new website hoping to bring together all the game masters of the Tabletop RPG world. The website itself is a collaboration; veteran game masters submit ideas, those ideas are translated into easy-to-read blurbs (called modules), and new game masters can read these blurbs to improve their campaigns.
The site currently features modules in the categories of Challenges, Puzzles, Encounters, and Creatures. However, it has high hopes of expansion with enough help for game masters everywhere.