Virtual Space : The manifestation of space in a space non-existing: Our interaction there is different from the experiences we are accustomed to in the actual world.

Conceptual Space : Within the construct of virtual space is space which is not based upon architectural forms or landscapes but is more connected to the notion of information orcognitive space.

Place : The immediate experience within virtual space is of a discernible environment constructed to represent an area in or through which to be engaged: space.

Carl DiSalvo, AN ESSAY ON VIRTUAL SPACE