VideoScribe - Make your own whiteboard video animations with Sparkol VideoScribe – award-winning video scribing app for PC, Mac and iPad. Free trial available.
Evernote - Bring your life's work together in one digital workspace. Evernote is the place to collect inspirational ideas, write meaningful words, and move your important projects forward.
Doodly - Create your own doodle video in just 60 seconds
Standard Notes - A safe place for your notes, thoughts, and life's work
TTS Sketch Maker - Create amazing whiteboard sketch videos with text-to-speech human-sounding voices in minutes!
Joplin - Joplin is a free, open source note taking and to-do application, which can handle a large number of notes organised into notebooks. The notes are searchable, tagged and modified either from the applications directly or from your own text editor.