Snip&Sketch - Quickly annotate screenshots, photos and other images with your pen, touch, or mouse and save, paste or share with other apps.
Quip - Quip is the modern productivity suite that simplifies your life and helps your team get work done faster.
Apowersoft Free Screen Capture - Apowersoft Free Screen Capture is the free online screen recorder that allows users to do unlimited recordings within a few clicks.
Google Docs - Create a new document and edit with others at the same time -- from your computer, phone or tablet. Get stuff done with or without an internet connection. Use Docs to edit Word files. Free from Google.
NinjaCapture - All in on Screen Capture
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.