Smith, Roderick W., Advanced Linux Networking, Addisom-Wesley, 2002
Man, Ian., Hacking the Human: Social Engineering Techniques and Security Countermeasures, Gower, 2008
Gloor, Peter A., Swarm Creativity: Competitive Advantage through Collaborative Innovation Networks, Oxford University Press, 2006
*Note: I appreciate the thought that Peter put into this book. Fig 1.1 was especially revealing. His examples and analysis of the groups were also good.
Liebowitz, Jay. Knowledge Management: Learning from Knowledge Engineering, CRC Press, 2001
*Note: this is a very comprehensive and good book. It gives tips on Knowledge Engineering.