1. 1
Copyright © 2011, Elsevier Inc. All rights Reserved
Chapter 12
WWW Hyperlink Networks
Analyzing Social Media Networks with NodeXL
Insights from a Connected World

2. 2
Robert Ackland is a Fellow at the Australian National University. He works
on the development of new approaches (and associated software) for
empirical social science research into online social and organizational
networks, and has recently studied the networking behavior of political
bloggers and environmental activists. Robert has degrees in economics
from the University of Melbourne, Yale University (where he was a
Fulbright Scholar) and the ANU, where he completed his PhD in
economics in 2001.
In 2005 he established the Virtual Observatory for the Study of Online
Networks (http://voson.anu.edu.au) project and in 2007, he was awarded
a UK National Centre for e-Social Science Visiting Fellowship and an
Oxford University James Martin Visiting Fellowship (at the Oxford Internet
Institute). Robert coordinates the ANU's Master of Social Research
programme and teaches courses on the social science of the Internet and
online research methods. He is currently writing a related book (to be
published by SAGE).

3. 3
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.1
Chapter
12
NodeXL Data Import “VOSON login” dialog.

4. 4
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.2
Chapter
12
NodeXL “Select existing or build new VOSON network” dialog.

5. 5
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FIGURE 12.3
Chapter
12
NodeXL “Create VOSON database” dialog.

6. 6
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FIGURE 12.4
Chapter
12
NodeXL “Select existing or build new VOSON network” dialog
after a new database has been created.

7. 7
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FIGURE 12.5
Chapter
12
NodeXL “Add seed sites to VOSON database” dialog.

8. 8
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FIGURE 12.6
Chapter
12
NodeXL “Add seed sites to VOSON database” dialog
after entering voson.anu.edu.au as seed site.

9. 9
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.7
Chapter
12
NodeXL visualization of a VOSON map of the
http://voson.anu.edu.au web site (ego) connected to 83 other web
sites (alters).

10. 10
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.8
Chapter
12
NodeXL visualization of the 1 degree VOSON
hyperlink network with vertex color matching generic
TLD.

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Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.9
Chapter
12
NodeXL visualization of the VOSON 2 degree hyperlink network created by
crawling http://voson.anu.edu.au plus 15 additional seed sites that link to it.

12. 12
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FIGURE 12.10
Chapter
12
A filtered NodeXL visualization of the VOSON Project local
hyperlink network containing 16 seed sites plus related “important
sites.”

13. 13
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.11
Chapter
12
NodeXL visualization of the local hyperlink network for the VOSON Project
(filtered). Seed sites are solid squares (except for the VOSON Project web site,
which is a solid triangle), whereas other sites are discs. Vertex size is proportional
to in-degree and vertex color corresponds to generic TLD (.edu, turquoise; .org,
blue; .com, red; and .net, brown).

14. 14
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.12
Chapter
12
NodeXL “Add seed sites to VOSON database”
dialog with 16 seed sites plus related “important sites.”

15. 15
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.13
Chapter
12
A filtered NodeXL visualization of seed sites focused on “social network
analysis” plus important sites (sites with degree greater than or equal to two).
The favicon (where available) is displayed for the seeds, whereas red discs
are used to represent nonseed sites.

16. 16
Copyright © 2011, Elsevier Inc. All rights Reserved
FIGURE 12.14
Chapter
12
A filtered NodeXL visualization of seed sites focused on “social network
analysis,” using the favicon (where available) for the graph vertex.