BrowseShot - BrowseShot lets you capture a PNG of the full scrollable area of a website.
CrossBrowserTesting - Browser Testing made simple! Run automated, visual, and manual tests on 1500+ real browsers and mobile devices. Test more browsers, in less time.
CutyCapt - CutyCapt is a small cross-platform command-line utility to capture WebKit's rendering of a web...
browserling - Live interactive cross-browser testing from your browser.
web-capture - Capture a full web page screenshot online
Browsershots - Browsershots makes screenshots of your web design in different browsers.