How to Place the Dock in a Corner of the Screen in Mac OS X

Want to have the Mac Dock in the corner of the screen? The Mac OS X Dock sits centered along the bottom of the screen on every Mac by default, and most users probably assume that moving the Dock to a new location is limited to centering on either the left or right side of the screen.
It turns out you can actually have much more control over the Dock positioning, and with the help of a little defaults command string you can actually pin the Dock into the corner of the Mac display.

The
Need to quickly send out a message from your Mac to one of your contacts with iMessage, someone on AIM, Yahoo Messenger, or Facebook messaging? So long as the messaging service is configured for use with the Messages app on the Mac, you can quickly send out a new message directly from Notification Center in Mac OS X.
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