In Delores's flashback you must solve a puzzle that involves going into the library in the Mansion mansion to look for a book on programming. Once you activate that portion of the puzzle, you'll notice that there's lots of books on the shelves in the library. Each of these were written by Kickstarter funders. "Look at" 100 of these books (make sure to open the cover or it won't implement), and you'll have an easy 50G.
*edit* Several people have confirmed that you don't need to open the book to actually have the achievement implement, so that will save even more time if you're not feeling like reading.