librosphere 

1.The atmosphere of the library.
The name was invented to refer to the dim lighting, hushed whispers, and sound of turning pages customarily found in the library.

The librosphere is perfect for studying.

librosphere by BSquared(R1B) March 7, 2009

Litmosphere 

A litmosphere is an atmospheric situation that can only be described as lit.

For example, you just won $4567 at the slots, and you're about to pay for bottle service for the whole club- this club's about to have a great litmosphere.

Litmosphere by Litmosphere July 24, 2019

linkosphere 

Defines the world of links which are to click on a web page (URL). The accumulated links are called "linkosphere". Term invented by Ben, alias Marc in Berlin (Germany) in 2009 when he wanted to find a name for his extensive personal link list. A similarity to blogosphere seems to be obvious.

Hey, I have to check out my linkosphere today...
This linkosphere is great, thank you for it!
I like my linkophere.
The linkosphere will tell me.
Ask the linkophere.

linkosphere by Ben, alias Marc September 7, 2009

lithosphere 

litho in lithosphere means "stone" in greek. Lithosphere is the rigid outer part of earth, consisting of the crust and mantle.

Student- "what are we learning about today?"
Teacher- "we'll be learning about the lithosphere part of earth."

lithosphere by art_trash February 3, 2018