Keyboard Navigation in Mac OS X Core Apps

Expose, Spaces
tab (Expose)	cycle through Expose'd windows
tab (Spaces)	cycle through Spaces
number (Spaces)	focus specific space
c (Spaces)	collect all windows in space 1
Dashboard
command-right arrow	go to next page of widgets in widget dock
command-left arrow	go to previous page of widgets in widget dock
command-+	show/hide widget dock
command-R	reload widget
option-hover pointer over widget	show close button for widget
Spotlight
escape	clear search field (press again to close menu)
tab	select current search term (equivalent to command-a)
command-enter	show selected file in Finder (equivalent to command-R or command-clicking an item)
command-up arrow	move to the first result in the previous category
command-down arrow	move to the first result in the next category
Finder
shift-command-T	Add to Favorites
command-T	Add to Sidebar
escape	Cancel a drag-and-drop action while dragging
option-click zoom button	Cascade all Finder windows
option-click close box or command-option-W	Close all open finder windows (except popup windows)
shift-option-command-W	Close all open finder windows (including popup windows)
command-K	Connect to Server
option-drag file	Copy file to location
option-command-A	Deselect all items
command-E	Eject
shift-command-delete	Empty the Trash (with warning)
shift-option-command-delete	Empty the Trash (without warning)
command-F	Find any matching Spotlight attribute
shift-command-F	Find Spotlight file name matches
shift-option-command-escape	Force Quit Finder
control-command-I	Get Summary Info
command-[	Go Back
command-]	Go Forward
shift-command-G	Go to Folder dialog (with Tab Autocomplete)
shift-command-H	Go to home folder of current user
shift-command-?	Mac Help
option-command-drag file	Make alias of file
command-L	Make alias of the selected item
shift-option-command-up arrow	Make desktop the active window, select parent volume
Page Down or control-down arrow	Move down one page
command-drag file	Move file
command-delete	Move to Trash
Page Up or control-up arrow	Move up one page
command-N	New Finder window
shift-command-N	New folder
option-command-N	New Smart Folder
shift-command-D	Open desktop folder
control-command-up arrow	Open enclosed folder in a new window
Space while dragging	When dragging file onto folder it will spring open without the usual delay
shift-command-I	Open iDisk
shift-command-K	Open Network window
command-up arrow	Open parent folder (if there is no selection or open windows, open Home)
option-command-up arrow	Open parent folder, closing current folder
command-O	Open selected item
command-down arrow	Open selected item (if there is no selection or open windows, open Desktop)
option-command-down arrow	Open selected item, closing current folder
command-click sidebar icon	Open Sidebar item in a new window
shift-command-A	Open the Applications folder
shift-command-C	Open the Computer window
shift-command-U	Open Utilities folder
Space or command-Y	Quick Look selected item
option-spacebar	Fullscreen quicklook selected item
Return or Enter	Rename the selected file/folder (escape cancels, enter accepts the changes)
double-click resize widget	Resize current column to fit the longest file name
tab (shift-tab reverses direction)	Select the next icon in Icon and List views
option-hover pointer over filenames	Show full name if condensed with an ellipsis
option-command-I	Show Inspector (a single window that updates based on selected item or items)
command-R	Show original (of alias)
command-J	Show View Options
option-command-Y	Slideshow of selection
command-1, command-2, command-3, command-4	Switch Finder views (Icon, List, Column, Cover Flow)
command-Z	Undo
shift-command-Z	Redo
Finder - Icon View
command-1	switch to icon view
tab/shift-tab	move between icons
Finder - Column View
command-3	Switch to Column View
tab/shift-tab	switch between panes
option-double-click resize widget	resize all columns to fit their longest file names
type anything	Find As You Type within the focused pane (FAYT)
right	Focus contents of selected directory in a new pane
left	go one pane back
Finder - List View
command-2	switch to list view
type anything	Find As You Type (FAYT)
tab	cycle through contents of folder, wrapping around
shift tab
command-up	change working directory to parent
right	open selected folder
left (on a file)	jump to parent folder, if that folder is visible
left (on folder)	close that folder, if open
option-right	open all children of all selected folders
option-left	close all selected folders and children
option-click disclosure triangle	expand/collapse folder and children, recursively
Cover Flow
command-4	switch to cover flow view
open..., save..., browse...
/	go to... dialogue, allowing one to specify full pathnames from root file. w/ Tab Autocomplete
command-shift-g	Go to folder... dialogs. w/ Tab Autocomplete
tab space	activate disclosure triangle