Greenshot - Greenshot is a free and open source screenshot tool that allows annotation and highlighting using the built-in image editor.

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

Shutter - Shutter is a feature-rich screenshot program.

Wayback Machine - Browse through over 150 billion web pages archived from 1996 to a few months ago.

MWSnap - MWSnap is basically a free to use Windows snapping tools that are used for snapping any part of the screen that is currently displaying on the front of all opened programs and windows.

Perma.cc - Perma.