Windownaut!

Using Spectacle you can view multiple documents side-by-side, move windows to other displays, or even focus your full attention to a single task.

Aquasnap is a powerful window manager that helps you arrange and organize multiple applications on your desktop with minimum effort. It allows you to achieve maximum multitasking, especially if you own a high-resolution monitor or a multi-monitor setup.

WinSplit Revolution is a small utility which allows you to easily organize your open windows by tiling, resizing and positioning them to make the best use of your desktop real estate.

ShiftIt is an application for OSX that allows you to quickly manipulate window position and size using keyboard shortcuts. It intends to become a full featured window organizer for OSX. It is a complete rewrite of the original ShiftIt by Aravindkumar Rajendiran which is not longer under development.

BetterSnapTool is a utility that mimics Windows 7 Aero snap, allowing you to easily manage your window positions and sizes by either dragging them to one of your screens corners or to the top, left or right side of your screen. This lets you easily maximize your windows or position them side by side.

AltDrag allows you to move and resize windows much easier. When you have it running you can simply hold down the Alt key and then use your mouse to drag any window, and it doesn't matter where in the window you click. This is especially useful in netbooks, with respect to the small screen and touchpad. It simply allows you to do more with less mouse movements.

GridMove - A window management tool that can quickly arrange your windows into desktop grids.GridMove is a program that aims at making windows management easier. It helps you with this task by defining a visual grid on your desktop, to which you can easily snap windows. This program comes bundled with some predefined grid templates, that can be easily swaped, but also has ways of creating custom grids or sharing grids made by others.

HyperDock adds Windows 7 like features and more to Mac OS X.

WindowGrid is a modern window management program that allows the user to quickly and easily layout their windows on a dynamic grid.WindowGrid gives functionality to the normally useless right mouse button when moving a window. Doing this will enable the grid snap mode.

WindowSpace is a powerful desktop enhancement utility for large monitors, widescreens and multi-monitor systems. Once installed, it allows you to manipulate windows in many new amazing ways – snap windows to the screen edges and other windows, move and resize them with keyboard shortcuts, maximize vertically or horizontally, pin on top of the other windows, hide from view, minimize to tray, and it’s just the beginning!

A tiny window management app for the Mac.