Gtalk shortcuts keys

Everyone of us know the importance of shortcut keys when we are working with any software, right ?
here are some of the keyboard shortcuts which will make your life more convenient/easy when you are chatting/communicating on gtalk..

Ctrl + E - Brings the selected text on center or current line
Ctrl + R - Right justification of selected text or current line
Ctrl + L - Left justification of selected text or the current line. (by default)
Ctrl + Shift + L -Switch between points, numbers, letters, uppercase letters, roman numbers and capital roman numbers.
Ctrl + 1 (KeyPad) - Provides normal (simple) space between lines
Ctrl + 2 (KeyPad) - Provides double space between lines
Ctrl + 5 (KeyPad) - Provides 3/2 space between lines
Ctrl + 1 (NumPad) - To go to the end of the last line.
Ctrl + 7 (NumPad) - To go to the begin of the last line.
Ctrl + F4 - Close current window.
Alt + F4 - Close the current window.
Alt + Esc - Minimize all the windows.
Windows + ESC - Open Google Talk (if it's minimized, or in the tray)
F9 - Open Gmail to send an email to the current contact.
F11 - Initiates a telephonic call with your friend.
F12 - Cancels a telephonic call.
Esc - Closes the current window.

You might be knowing some but not all !! ;)
Hope these were useful..