1. 4
Organizing Information
Web 2.0:
Concepts and
Applications

2. Overview
 Information once stored physically now is becoming
available digitally
 Tagging is the process of assigning short, descriptive
labels to digital information
– Tag
– Collaborative process
– Many online services and Web applications support tagging
 Social bookmarking is the process by which users
post the URLs of their favorite Web sites online
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3. Overview
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4. Organizing Digital Information
 Two popular approaches to organizing digital
information
– Hierarchical organization
• Dmoz
– Nonhierarchical organization
• Delicious
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5. Organizing Digital Information
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6. Organizing Digital Information
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7. Organizing Digital Information
 Storing files in folders on your personal
computer uses hierarchical organization
 Adding tags to your pictures uses
nonhierarchical organization
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8. Organizing Digital Information
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9. Tagging Information on the Web
 On the Web, you can tag items such as:
– E-mail messages
– Items in your news reader
– Blog posts
– Photographs
– Articles or content of interest
 You can associate a single item with multiple
different tags
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10. Tagging Information on the Web
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11. Tagging Information on the Web
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12. Tagging as a Means of Collective
Organization
 Tagging can create associations between
pictures, documents, or other digital
information
– Tags should be descriptive
 Taxonomy is a methodical, scientific way of
unambiguously classifying information
 Folksonomy describes the collective result of
different people individually applying tags to
the same online content
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13. Tagging as a Means of Collective
Organization
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14. Using Tagged Data
 Tagged data enables
the capability of
recommending products
to potential customers
 Collaborative filtering is
a method whereby
predictions are made
about one user’s
interests by collecting
and analyzing data from
many users
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15. Sharing and Tagging Photos
on Flickr
 Flickr is a popular Web site for uploading,
sharing, and organizing digital pictures and
videos
– You must first create an account in order to use
the service
 Your collection of pictures on Flickr is called a
photostream
– Recently uploaded pictures are displayed first
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16. Sharing and Tagging Photos
on Flickr
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17. Sharing and Tagging Photos
on Flickr
 Clicking on a photo displays that photo’s page
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18. Sharing and Tagging Photos
on Flickr
 After uploading your
photos, you can
organize them into sets
based on the location or
event
 You also can view all of
your assigned tags as a
tag cloud
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19. Sharing and Tagging Photos
on Flickr
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20. Adding a Flickr Badge
to your Blog
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21. Syndicating Your Photos
Using RSS
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22. Setting Creative Commons
Licenses
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23. Adding Geotags
 A geotag contains the
latitude and longitude
coordinates of where a
photo was taken in
order to plot it on a map
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24. Social Bookmarking
with Delicious
 Web browsers use different terminology to
refer to the collection of favorite Web sites
– Favorites
– Bookmarks
 You can organize your favorites and
bookmarks into folders
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25. Social Bookmarking
with Delicious
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26. Sharing and Tagging Bookmarks
with Delicious
 Delicious provides a way to store your
bookmarks online
– Must have an account
 You can share your bookmarks with others
 Delicious measures the popularity of a
particular Web page
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27. Sharing and Tagging Bookmarks
with Delicious
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28. Interacting with Delicious
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29. Saving a Bookmark
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30. Saving a Bookmark
 You can save others’
bookmarks into your
collection
 You can click on related
tools to find other
bookmarks that may be
of interest
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31. Searching for Bookmarks
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32. Advanced Features of Delicious
 Syndicating Bookmarks Using RSS
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33. Advanced Features of Delicious
 Sharing Bookmarks with Other Users
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34. Advanced Features of Delicious
 A linkroll displays the most recently added
bookmarks on your blog or Web site
 A tagroll displays your tags as a tag cloud
 To display a linkroll or tagroll on your blog,
copy and paste the HTML code for the linkroll
or tagroll from the Delicious Web site into the
HTML editor
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35. Advanced Features of Delicious
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36. Advanced Features of Delicious
 Encouraging Users to Tag Your Content on
Delicious
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37. Summary
 Tagging allows individuals to use keywords to
describe digital information
 Several Web sites allow users to organize digital
content using tags
– Flickr
 Search engines and tag-based searches
 Both Flickr and Delicious promote the use of tags to
describe and organize content in ways that are
personally relevant
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38. 4
Organizing Information
Chapter 4
Complete
Web 2.0:
Concepts and
Applications