Wayback Machine - Browse through over 150 billion web pages archived from 1996 to a few months ago.
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
Archive.md - archive.is allows you to create a copy of a webpage that will always be up even if the original link is down
Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.
Time Travel - Prebook rides for Uber
LightShot - The fastest way to take a customizable screenshot.