By Stephen Bigelow
By Patrick Engebretson (Assistant Professor of Information Assurance; Senior Penetration Tester for security firm in the Midwest)
By Kenneth C. Laudon, Jane P. Laudon
By Sam Ruby
By Mackay, David J. C.
By Sadun, Erica
By John A. Ball
By Joe Suzuki
By Rongpeng Li, Aiichiro Nakano
By Matthew MacDonald
By Hossein Pishro-Nik
By Joan Lambert, Joyce Cox
By Steven Hoober
By Dave Gray
By Paul J. Feltovich, Kenneth M. Ford (Founder and CEO, Institute for Human and Machine Cognition), Robert R. Hoffman (Senior Research Scientist, Inst For Human And Machine Cog)
By Jim Buyens
By Mark Minasi
By Graham Edmonds
By C.W. Kilmister
By Reed Jacobson
By Joel Jackson
By Sleight, Peter
By Betten, Anton, Kohnert, Axel, Laue, Reinhard, Wassermann, Alfred
By Cisco Systems Inc., Cisco Networking Academy Program
By Cisco Systems Inc.
By Andrew, Rachel, Ullman, Chris, Waters, Crystal
By Rizzo, Thomas, Machanic, Adam, Dewson, Robin, Walters, Rob, Sack, Joseph, Skinner, Julian, Davidson, Louis, Machanic, Adam
By Landrum, Rodney, Voytek II, Walter J., Voytek, Walter
By Briggs, Jason R.