Useful Keyboard Shortcuts In Google+

As google+ is getting more and more handy these days I would like to share some shortcut keys in google+ today.
Shortcuts Descriptions
J Next post on stream
K Previous post on stream
O Expand / collapse current post
N Next comment on current post
P Previous comment on current post
R Type comment on current post
Tab + Enter Add comment on current post
L Load new posts
Spacebar Scroll down
Shift +Spacebar Scroll Up
/ Search
? Open keyboard shortcut help
@ Send a Google feedback
Left Arrow Opens list of pages. Use Up and Down arrow keys to navigate and Enterto select.
Right Arrow Scrolls to next content (Next picture in album)

As of now I have these shortcuts, I will update this whenever I get to know some more shortcuts. So do subscribe for more awesome posts.