Via Lainer, R. and I. Wagner, 1998. Connecting Qualities of Social Use with Spatial Qualities. In Proceedings of CoBuild98. Streitz, N., S. Konomi, and H. Burkhardt (Eds.), Heidelberg: Springer. Still the same discussion about the distinction between Space and Place :

This discussion also suggests to distinguish between place and space. While place focuses on the groundedness of what and how it is done in a particular context of people, environment, history, etc., emphasizing the specific contextuality, situatedness of social action and the needs for boundaries, space contains and structures activities in ways that are embedded in and interwoven with other parts of the environment. From this perspective space can be seen as an interweaving of infrastructures

This reminds me what Harrison and Dourish (1996) proposed :

Space is the structure of the world; it is the three-dimensional environment, in which objects and events occur, and in which they have relative position and direction. The properties of space are those which derive from that definition (...) Physically, a place is a space which is invested with understandings of behavioural appropriateness, cultural expectations, and so forth. We are located in ``space'', but we act in ``place''. Furthermore, ``places'' are spaces that are valued. The distinction is rather like that between a ``house'' and a ``home''; a house might keep out the wind and the rain, but a home is where we live.

I also like the use of the Tschumis idea of architecture not as an object (or work, in structuralist terms), but as an interaction of space and events (1981)