1
by Speed
Published 2003
2
by Long
Published 2008
3
by Khare
Published 2006
4
by Todd
Published 2005
5
Published 2003
6
Published 2010
7
by Collins
Published 2005
8
by Reed
Published 2004
9
by Baase
Published 2009
10
by Baase
Published 2013
11
by Mayer-Schonberger
Published 2013
12
by Sloan
Published 2014
13
Published 2000
14
Published 2000
15
Published 2006
16
by Henderson
Published 2004
17
by GAFFIN
Published 1994
18
Published 2004
19
by ZITTRAIN
Published 2005
20
by MAGGS
Published 2005