Full Page Screen Capture - I built a Chrome Extension that allows you to save a screenshot of an entire webpage as an image
ShareX - ShareX is a free and open source program that lets you capture or record any area of your screen...
GoFullPage - GoFullPage is an all-in-one browser extension for Chromium, Firefox, Opera, and Chrome that lets you capture screenshots for page layouts.
Thum.io - A real-time website screenshot generator
NextUX Visual Editor - Easy-to-use iteration app for non-designers
Blink - Blink is a team and employee app, with a Feed, Chat and Hub (for documents, links, files).