[Zope] OT:looking for info/ideas on "Open Source Business Models"

[robert]

Hi all,

I am going to give a speech on "Open Source Business Models"  for which I am 
searching ideas and concepts.

What I would like to show is why and where  OSS provides a better base to make 
business than closed source. 
A main focus should not be how to provide "big" software packages like Zope/
Mysql/et al but on what business could be buildt around them.

Any Ideas and pointers would be greatly appreciated.

Robert