Thomas - SSL and TLS Essentials - Securing the Web (Wiley, 2000)
Turner - Implementing Email Security and Tokens (Wiley, 2008)
Understanding Information Transmission - J. Anderson, R. Johannesson (IEEE, 2005)
VanDyk - Pro Drupal Development 2e (Apress, 2008)
Wainwright - Pro Apache 3e (Apress, 2004)
Wall - Crime and the Internet [cybercrime] (Routledge, 2001)
Wireless Networking - Know it All (Newnes, 2008)
Wood - Programming Internet Email HQ [SMTP,MIME,IMAP,POP3] (O'Reilly, 1999)
Wouters - Building and Integrating VPNs with Openswan (Packt, 2006)
Young - The Hacker's Handbook - Breaking and Defending Networks (Auerbach, 2004)