Keyboard Shortcuts for Google+

Some Useful Keyboard Shortcuts for Google+ Users:

* Space – Scroll down the Stream
* Shift + Space – Scroll Up Stream
* J - Single Post Down Scroll
* K – Single Post up Scroll
* Q – Jump to Chat
* Return/Enter – Start Comment
* Return (Enter) + Tab – End Comment
*  + / @ – Use any of the sign to mention someone in the comment.