Are you familiar with Kickstarters? It is a great organization that allows writers, artists and the like put up projects that they need funded to get it started. Members give a time limit for companies, fans, and family to bid on the projects. If at the deadline the money is raised then the artist gets the money to fund the project.
Pubslush is similar to that. Readers will be able to read a few chapters then afterwards if they choose to ‘invest’ in the project they can if not they are not obligated to do so.
Writers submit 10 pages as well as a summary of the book in order to be listed. And every book sold Pubslush will donate a book to children. Nice!
Peace and luv!