Synergy - Cross-platform software for sharing your mouse and keyboard between multiple computers
DisplayFusion - DisplayFusion will make your multi-monitor life much easier.
Input Director - Control multiple windows systems with one keyboard/mouse. Share a keyboard and mouse across multiple windows system.
Ultramon - UltraMon is a piece of software built to help with the management of multiple screens on the same computer system. Without software like this, taking full advantage of an expanded desktop space can be difficult.
Dual Monitor Tools - Download Dual Monitor Tools for free. Tools for Windows users with dual or multiple monitors. Tools for Windows users with dual or .
Dual Monitor Taskbar - A taskbar for the second monitor.