The document defines and discusses key concepts related to Web 2.0, including its characteristics, applications, and risks. It provides definitions of Web 2.0 from various sources and describes its key features as being user-centered, interactive, and facilitating information sharing. The document also outlines several categories and popular tools associated with Web 2.0 applications, and discusses some potential security and social risks.

1. Nguyen, Song Huyen Chau, n7665288
Tran, Thi Ngoc Nhung, n7704119
Image from http://nh121996.edublogs.org/files/2012/06/web20-2eas71n.jpg

2. Definitions
Characteristics
Key applications
Major risks
Image from http://4.bp.blogspot.com/-QE6FSEhJBeY/T1gaIKMjLDI/AAAAAAAAD3g/iV9UJbhVkfw/s1600/web2.jpg

3. “Web 2.0 is the business revolution in the
computer industry caused by the move to the
internet as platform, and an attempt to
understand the rules for success on that new
platform. Chief among those rules is this:
build applications that harness network
effects to get better the more people use
them.”
(O‟Reilly, 2006)
Image from http://askatechteacher.files.wordpress.com/2011/12/web2postbubblebubbleboom.gif

4. Web 2.0 is defined as “a space that allows
anyone to create and share information
online - a space for
collaboration, conversation, and
interaction; a space that is highly
dynamic, flexible, and adaptable”.
(Coombs , 2007)
Image from http://pgrschoolofeducation.files.wordpress.com/2011/10/web2marketing.jpg

5. Image from http://yarikson.files.wordpress.com/2008/04/web-20-scheme.png

6. Image from http://simpleprocesses.files.wordpress.com/2009/09/web-1-0-and-web-2-02.jpg

7. Image from http://wemtech.wikispaces.com/file/view/web1vsweb2.png/101172389/web1vsweb2.png

8. Three basic characteristics:
 the freeing and innovative use of data
 the building of virtual applications by
drawing from the present applications
and data
 the participatory role of the user in
whatever format the user wants to
work or share.
(Miller, 2006)
Image from http://cf.ltkcdn.net/web-design/images/std/37992-400x300-Web20.jpg

9. A user-centred characteristic classification:
 Information sharing (e.g. documents and video)
 Grassroots mobilization (e.g. spreading news and opinions)
 Community building (e.g. meeting new friends, creating new services)
(Kool & van Wamelen, 2008, cited in Chua, 2010)
Image from http://www.jonathannicholas.com/wp-content/uploads/2008/09/social-networking.jpg

10. Seven categories of Web 2.0 applications
 Publishing Platforms
 Social Networking Sites
 Democratized Content Networks
 Virtual Networking Platforms
 Information Aggregators
 Edited Social News Platforms
 Content Distribution Sites
(Kami Huyse, cited in McDermott, 2007)
Image from http://www.connectioncafe.com/assets/blog-images/social-media-logos.jpg

11. The most popular tool-application areas associated with Web 2.0 include:
blogs, wikis, RSS, podcasts and videocasts, mashups, social sharing
services, communication tools, social networks, folksomonies and tagging, and
virtual worlds.
(Kelly, 2008)
Image from http://pixelcoblog.com/wp-content/uploads/2009/02/icontexto-drink-web20.png

12.  Blogs
 Wikis
 Tagging and social bookmarking
 Streaming media
 RSS (Really Simple Syndication)
 SNS (Social Networking Sites)
(Adapted from Anderson, 2007; Harris, 2008)
Image from http://www.prav-talks.com/wp-content/uploads/2011/11/web-2-sites.jpg

13. “The term web-log, or blog, refers to a simple webpage consisting
of brief paragraphs of opinion, information, personal diary
entries, or links, called posts, arranged chronologically with the
most recent first, in the style of an online journal (Doctorow et
al., 2002).
(Anderson, 2007, p.7)
Image from http://kathybackus.files.wordpress.com/2011/08/blog-2.jpg

14. “A wiki is a webpage or set of webpages that can be easily edited by
anyone who is allowed access”
(Ebersbach et al., 2006, cited in Anderson, 2007, p.8)
Image from http://uwstoutinnovations.wikispaces.com/file/view/wiki.gif/81914965/484x335/wiki.gif

15. “A tag is a keyword that is added to a digital object to describe it, but
not as part of a formal classification system.”
Social bookmarking systems allow users to
create lists of „bookmarks‟ or
„favorites‟, to store these centrally on a
remote service and to share them with
other users of the system.
(Anderson, 2007, p.9)
Image from http://batya150.files.wordpress.com/2011/09/free-social-media-iconset-price-tag-style.jpg

16. “Podcasts are audio recordings, usually in MP3 format, of
talks, interviews and lectures, which can be played either on a
desktop computer or on a wide range of handheld MP3 devices.”
(Anderson, 2007, p.10)
Image from http://www.indiana.edu/~icy/images/itunes_podcast_icon.jpg

17. RSS is a family of formats which allow
users to find out about updates to the
content of RSS-enabled websites, blogs
or podcasts without actually having to go
and visit the site.”
(Anderson, 2007, p.10)
Image from http://www.deviantart.com/download/51752520/Transparent_PNG_RSS_logo_by_TarnicDotCom.png

18. “Professional and social networking
sites that facilitate meeting
people, finding like minds, sharing
content—uses ideas from
harnessing the power of the
crowd, network effect and
individual production/user
generated content.”
(Anderson, 2007, p.13)
Image from http://snowkiwi.com/wordpress/wp-content/uploads/2012/05/sns10_1.jpg

19.  Aggregation services
 Data 'mash-ups„
 Tracking and filtering content
 Collaborating
(Anderson, 2007)
Image from http://img.scoop.it/6baiker4xkR_1_BwxKnp-Tl72eJkfbmt4t8yenImKBVaiQDB_Rd1H6kmuBWtceBJ

20. Aggregation services gather
information from diverse sources
across the Web and publish in one
place (e.g. Google)
(Anderson, 2007)
Image from http://diversegy.com/img/aggregation_img.jpg

21. “Web services that pull together data from different sources to create a
new service (i.e. aggregation and recombination). “
(Anderson, 2007)
Image from http://www.lgeoresearch.com/img/MashupHandshake.jpg

22. “Services that keep track of, filter, analyse and allow search of the
growing amounts of Web 2.0 content from blogs, multimedia sharing
services etc.”
(Anderson, 2007, p.13)
Image from http://t2.gstatic.com/images?q=tbn:ANd9GcRc1ly-Ow6Jx0qoSee5gLp6Bkg59zGamz2lpcr-lDEbFDf1wxu-
6h9TmSjl

23.  Collaborative reference works
(like Wikipedia) that are built
using wiki-like software tools.
 Uses ideas from harnessing the
power of the crowd and
architecture of participation.”
(Anderson, 2007)
Image from http://www1.imperial.ac.uk/resources/C3DBF366-7292-40EF-8D5E-63D292701E2F/global_collaboration.jpg

24.  Security risks
 Social risks
Image from http://www.tina-george.com/wp-content/uploads/2011/12/risks.jpg

25.  Media, marketing and the lack of control
Web 2.0 = More content, Less control, More uncertainly
 Data privacy
Web 2.0 = a Personal Data Explosion
(Bartkiewicz, 2008, p.17 & 23)
Image from
http://www.artistsvalley.com/images/icons/Network%20Security%20Icons%20Var/Hyperlink%20Security%20Risk/256x25
6/Hyperlink%20Security%20Risk.jpg

26. “Many of the Web 2.0 applications contain no provision for monitoring
content or traffic to ensure that sensitive information is not being
transmitted inappropriately.”
(Cunningham, 2009)
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27.  SOCIAL FREELOADERS
 SOCIAL “A” LISTERS
 SOCIAL NON-TRANSPARENCY
 SOCIAL GOSSIP
 SOCIAL DEVIANCY
(Bogatin, 2006)
Image from http://k02.kn3.net/6F91E571B.jpg

28.  Loss of information
 Release of confidential information
 Disreputable behaviour
 Public negative comments
 Accessibility
 Lack of engagement
(Briggs, 2008)
Image from http://www.dunwebcarts.com/images/OSC/risk-icon.jpg

29. Image from http://www.wiikno.com/wp/wp-content/uploads/2009/05/people-jumping-web.gif

30. Image from http://3.bp.blogspot.com/-9UXgxLiQ27w/T32vuRN4jCI/AAAAAAAAATk/10jhQWOMDbU/s1600/thank-

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