For our purposes, an open business practices the following:
My own hunch is that this is probably theoretically impossible, given the apparent fact that Information Does Not Want To Be Free. Nevertheless OpenHumanity has been proposed as an even more ambitious and optimistic take on open business.
PubWan is proposed as an attempt to reverse engineer a reasonable (but probably "lo-res") facsimile of the informational offerings of a hypothetical open business using a combination of volunteered labor, information (see VolunteerInformation), software and bandwidth.