I’ve been using mindmaps for creativity, brainstorming, organizing, planning, writing and taking notes for many years now. My favorite mindmapping app is Mindmeister which works on the web, and on mobile devices. You can view the maps for free. For me, Mindmapping was a real life changer and Mindmeister is a top notch and affordable app. If you want to give it a spin, here is a link to the Mindmeister free trial.