When, and from where, did "space", as a synonym for industry, sector, or business segment, enter the language? For example, one wouldn't expect to read "His family made a fortune in the buggy whip space", but sentences such as "Is this a game-changer, in a negative way, for other IPOs in the social media space?" are common.
UPDATE: Thanks for answers so far. I don't believe any of them answer the question as to the etymological derivation and date of entry into the language of this meaning of the term.