iPhoto Library Manager provides shortcuts, a way to open your iPhoto libraries directly from the Finder. To create a shortcut to a library, drag a library from the library list to a place in the Finder, such as your desktop or a folder. A shortcut file for the library will be created in the location you drag to. You can then double click on this shortcut file to open that library directly from the Finder. For even easier access, drag the shortcut file to the dock, and you can have one-click access to the library.

See also:

Managing iPhoto libraries

Switching between libraries