Screencastify - Free screen recorder extension for Chrome. Capture, edit and share screencasts. No software download required. Works on Mac, Windows and Chromebooks. Screen RecorderFree screen recorder for Chrome.
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
SketchCasts - A weekly screencast, all about how to use Sketch
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
GoRails - Ruby on Rails screencasts for Web Developers
LightShot - The fastest way to take a customizable screenshot.