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.
BrowseShot - BrowseShot lets you capture a PNG of the full scrollable area of a website.
Sauce Labs - Test mobile or web apps instantly across 700+ browser/OS/device platform combinations - without infrastructure setup.
Paparazzi! - Paparazzi! is a small utility for Mac OS X that makes screenshots of webpages.
Browsershots - Browsershots makes screenshots of your web design in different browsers.