For a subsite aimed at businesses, business.python.org is obvious and
easily remembered. Not all businesses are corporations. 'about' and 'why'
are not specific at all.
I think such a subsite, linked from the main site also, would be a good
idea. It should explain both why (including success
Ummm... I don't think that anyone looks for information by trolling
subdomain names. If I am looking for python information, I go to
www.python.org or python.org. I would never guess "business.python.org".
Seems to me that what we need is content and let the search engines bring
on the masses.