Big Screen Alternatives
Big Screen is described as 'software that can extend the user's screen either locally or through the network. Maximum four-fold expansion of user's desktop in the standard version, at least up to 2560x2048 pixel resolution' and is an app in the os & utilities category. There are three alternatives to Big Screen for Windows. The best alternative is GiMeSpace Desktop Extender. It's not free, so if you're looking for a free alternative, you could try 360desktop or Infinite_Screen.
GiMeSpace Desktop Extenders are scrolling virtual desktop managers and the only virtual desktop/window managers that give you seamless unlimited desktop space. New since version 2 is that you can now also resize your windows without any limitations.
360desktop is free software that extends Windows as a 360 degree workspace, plus an online environment for creating interative 360 degree wallpaper, with a gallery and a widget platform, for sharing your favorite 360's with everybody.
Discontinued
Infinite_Screen is a free tool to move or scroll your desktop.