MegaZine 3 is an open source and free Flash pageflip engine for presenting any content with a book-like interface where users can flip the pages. This means two things, basically: you don’t have to pay for it, and you can even modify it in any way you see fit. MegaZine 3 uses a completely dynamic approach, allowing full configuration through an external XML file. This makes it easy to set up books even if you do not even own the Flash IDE.