Note-Taking

By Ruth Arjona
Made on edshelf.com.

Evernote

Free Android Phone app
Google Chrome app
Mozilla Firefox extension
Free iPad app
Free iPhone app
Free Mac program
Apple Safari extension
Free Windows program
Website

Skitch

Free Android Phone app
Free iPad app
Free iPhone app
Free Mac program

Paper by FiftyThree

Free iPad app

Padlet

Website
Google Chrome app