Complete systems
KVM
Monitor stands
Monitors
Multi-monitor solutions for laptops
Presentations / Multimedia
Screen savers
Utilities
Video/DVD
Complete systems

Computers complete with multi-monitor video cards and 2 or more monitors:

KVM

See the FAQ for more information on multi-monitor KVMs.

Monitor stands
Monitors

Display systems with 2 or more monitors.

Multi-monitor solutions for laptops

DisplayLink
USB video cards and monitors from several manufacturers.

Magma
PCI Express expansion systems allow you to connect one or more PCI Express video cards to your laptop via ExpressCard.

Matrox
The DualHead2Go and TripleHead2Go take the output of the laptop's external monitor port and split it between 2 or 3 monitors. Please note that Windows sees the monitors connected to the 2Go cards as a single wide monitor, which causes problems for multi-monitor software such as UltraMon.

Village Tronic
USB, ExpressCard and PCMCIA video cards for laptops.

Presentations / Multimedia

EasyWorship
EasyWorship is church software designed specifically for churches to project worship songs, nursery alerts, and PowerPoint presentations on an overhead or video projection system using a single computer with dual monitor outputs.

MediaShout
MediaShout software is designed from scratch to meet the unique and demanding needs of ministry presentation. Dual-monitor design ensures that the audience sees only what you want them to see.

PowerPoint
Microsoft PowerPoint 2000 or later has special support for multiple monitors. You can have presentation notes on one monitor, while showing the slides fullscreen on another monitor.

PowerShow
PowerPoint plug-in which adds support for running multiple slideshows (one per monitor), stretching a single slideshow across multiple monitors, and more.

Presenter
Program for controlling pages of text for display on a large screen using a video projector. Its intended application is for churches wanting a more practical alternative to using overhead transparencies. You interact with the application on one monitor, the text gets displayed on another one.

ProPresenter
ProPresenter is a cross-platform lyric and media presentation package built from the ground up to help make powerful worship productions easy. Taking full advantage of the latest technologies, ProPresenter allows an operator to control a presentation on one screen, while dynamically affecting the visuals and lyrics experienced by an audience on one or more screens.

Screen savers

Bubbles
similar to the Starfield screen saver included with Windows, but with bubbles instead of stars.

Flurry
OpenGL 3D screen saver with multi-monitor support.

gPhotoShow
makes a slide show out of your images, with an optional soundtrack (MP3 and other formats supported). It displays one image per monitor.

Hypnogenic Screen Saver
Generates a dazzling array of mind blowing patterns. As the patterns evolve on your screen the shapes and colors will seethe and morph hypnotically. Users can customize the animations through a sophisticated interface that allows complete control over virtually every aspect of the image creation process.

Kinemorphic 3D Screen Saver
Animates an endless variety of spectacular 3D patterns and images. As the 3D patterns animate on your screen, the objects, images, lighting, and colors will move through, around, and on top of each other. Kinemorphics has been designed to give you an unprecedented amount of control over the effects used. You can use your own graphical images as object textures and backgrounds while Kinemorphics generates extraordinarily realistic lighting effects on top of stunning, living 3D objects.

MatrixMania
Highly configurable Matrix screen saver with multi-monitor support. It also works fine on secondary monitors with UltraMon™.

Mephzara Particle Systems Screen Saver
Screen saver that animates 3d particle systems.

Moire
A 3D screen saver based on a Microsoft sample screen saver, with full hardware acceleration on each monitor. Requires DirectX 8 or later.

Moire with random colors
Same as the regular Moire screen saver, but with random colors.

Particle Fire
Experience a mesmerizing display of dynamically generated particle effects. Particle Fire 2 supports multi-monitor systems: watch the spectacular pyrotechnic effects travel from one screen to another.

Psychedelic Screen Saver
A light synthesizer that generates an astounding variety of mesmerizing patterns. As the patterns materialize on your screen, the colors will shift, undulate, and blow your mind. Whether you're into abstract art, mathematics, or just have a history of mental illness, you'll love this screen saver.

Really Slick OpenGL screen savers
A collection of 3D screen savers using OpenGL for rendering. Also works fine on secondary monitors with UltraMon.

SunXi Particle Screen Saver
Shows the power of SunXi 3D animation engine. Many different 3D scenes are available. You can modify the number of particles in each scene.

UltraMon™ Screen Saver
included with UltraMon™, lets you use screen savers that aren't multimon-compatible by running them on the primary monitor and blanking all secondary monitors. You can even run a different screen saver on each monitor!

VideoSaver
plays your favorite videos as your screen saver. On multi-monitor systems, you can choose between one video on each monitor or a single video stretched across all monitors (ideal for video walls).

ZMatrix
Displays streaming characters in a style similar to what was used in the movie 'The Matrix'.

Utilities

Dexpot
Virtual desktop manager, compatible with multiple monitors and UltraMon.

MaxiVista
Enables you to use a laptop or other PC as an additional monitor for your main system (Review).

MouseJail
useful utility for gamers with multi-monitor systems. Some games don't lock the mouse to the monitor they're on, which causes problems when secondary monitors are enabled. Some examples are Ghost Recon and GTA 3. MouseJail solves this problem by starting the game and then locking the mouse to the primary monitor.

NiftyWindows
Utility which allows you to assign special actions to mouse and keyboard buttons.

If UltraMon is also installed, and your mouse has back (4th) and forward (5th) buttons, NiftyWindows supports moving windows to the next/previous monitor by pressing right mouse button + forward mouse button and right mouse button + back mouse button.

In order for this to work, you'll need to create two UltraMon hotkeys:

CTRL + SHIFT + < : move window to next monitor
CTRL + < : move window to previous monitor

PowerStrip
A display utility with multi-monitor support, features include support for display and gamma profiles, and custom display modes.

UltraMon
A multi-monitor utility, adds tools for effective window management, multi-monitor Smart Taskbar, multi-monitor wallpapers and screen savers, mirroring and more.

Video/DVD

See the FAQ for a list of video/DVD players with full multi-monitor support.