Thum.io - A real-time website screenshot generator
Screenshot Tracker - Capture and keep track of full-sized web page screenshots
Screenstab - A tool to turn ordinary screenshots into beautiful image assets
Microlink screenshot - Take a screenshot of any website
Scrola - Create scrolling website screenshots, easily
GoFullPage - GoFullPage is an all-in-one browser extension for Chromium, Firefox, Opera, and Chrome that lets you capture screenshots for page layouts.