Bowerbird, a member of TeBC (The eBook Community, a Yahoo! group) contributed a number of helpful editorial suggestions concerning an early draft of this book. Jon Jermey, also a member of TeBC, first suggested to me the idea of inviting editing suggestions from readers and kindly pointed out that in Australia black swans are not rare but common. Richard Shilling of the Cognition Group drew my attention to Open Source Software: A Primer for Health Care Leaders. Mike Edelman point out several embarassing errors in Revision 1.0.