Informal speaking:
equally simple, reliable, durable and doubtless space for communication over distance and time
as paper, ink and Gutenberg technology.
The information space is the space,
where all information is stored
no matter of the physical
location where it appear to be presented.
To illustrate a little more: if there was any information in a brain,
that part of the brain, where the information is actually stored,
is part of the information space.
The same applies to transscripts and recordings of speech,
again that part of the media, which actually stores the information,
is part of the information space.
So we better conclude
the information space must a conceptual (often called virtual) space.
The presentation of the information,
as it can be stored on all sorts of media,
is a projection of the information space
onto the media filtered by some some encoding function.
Reiterating the above in other words:
there is no such thing like copying in the information space.
All copies are projections of the same information.
Example:
If I heared a song today and sang it tomorrow morning in the bathroom,
I would still be the same song.
Many copies just make the information stronger, not more.
See also HomesteadingInTheNoosphere
and an interesting ruling of an american court
as reported by
The New York Times
and commented by
slashdot
BTW:Confusion about that little difference
between data
(an encoded projection from the information space into values
from other spaces)
and information
has lead to many unfortune situations in history
where people fought data
when they tried to fight information.
I'd like to remind here to too many burned books,
killed singers,
cencorship, DeCSS etc.