You can contribute to ProjecteWrite here or via Indiegogo.
Eve is the inaugural project of Project eWrite. The story itself was written with the intent of giving just enough information about the world to activate the imaginations of writers. We will be welcoming stories based in its world, Miasma, based on the rules as laid out in the submission guidelines. Submissions will not be accepted until funding for the project is sorted out. Please stay tuned. The seed story for the project can be read here.