Microsoft Office Mix
A free add-in for PowerPoint
Everything you need to easily create and share interactive online videos
https://mix.office.com/
For educators:
https://mix.office.com/en-us/education
Microsoft OneNote
http://www.onenote.com/
eduCanon
A free web-based tool that allows you to add interactivity to your videos
http://www.educanon.com/
Evernote
Free web and desktop application. Make and share notes.
https://evernote.com/
LICEcap
simple animated screen captures
http://www.cockos.com/licecap/
Hemingway editor
Hemingway App makes your writing bold and clear.
http://www.hemingwayapp.com/