2. Overview
Blogs and wikis are two Web 2.0 tools that allow users to publish content online
Blogs function as online journals
Wikis are collections of searchable, linked Web pages that users can create or edit collaboratively
A Web site is a collection of related Web pages that are usually hosted on the same server
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3. Overview
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4. Overview
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5. The Structure of Web-based Applications
Blogs and wikis both offer users a simple way to publish content to the Web without the need to know HTML
HTML uses tags to instruct a Web browser how to display a Web page
Cascading Style Sheets (CSS) is a complementary technology that specifies fonts, colors, layout, and placement
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6. The Structure of Web-based Applications
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7. The Structure of Web-based Applications
Many Web applications use a three-tiered structure that allows users to interact with the Web site
Presentation tier deals with presentation of information
Middle tier is responsible for processing user input
Also called the business logic tier
Database tier is responsible for retrieving requested information
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8. Understanding Blogs
Users update their blogs by entering new content using a blogging application
Collection of all bloggers (people who post to their blogs) and their blogs is referred to as the blogosphere
A permalink can be used to link to a specific article on a blog
Blog members read and follow a blog
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9. Corporate Blogs
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10. Understanding Blogs
Citizen journalists share their thoughts about news and events
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11. News and Opinion Blogs
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12. Searching Frequently Updated Web Content
The World Live Web refers to the ever-changing nature of all types of information on the Web
News headlines
Frequently updated blogs
Updates on social networks
Popular terms on search engines
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13. Searching Frequently Updated Web Content
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14. Web-Based Blogging Applications
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15. Interacting with a Blogger Blog
Components of most blogging applications include the ability to:
Create and edit blog posts
Configure the blog’s settings
Select a design template and customize its layout
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16. Interacting with a Blogger Blog
To create a blog post, enter the title of the post
Use the text editor to perform basic text formatting
Create hyperlinks and upload images and videos
You can edit or delete posts
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17. Interacting with a Blogger Blog
The Settings tab contains options for specifying:
Blog’s title and description
Whether the blog should be added to Blogger’s blog listings
Whether search engines will be allowed to index the blog when a new post is submitted
Formatting settings
Whether to display blog comments
and mobile settings
Permissions settings
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18. Interacting with a Blogger Blog
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19. Interacting with a Blogger Blog
The Layout tab allows you to configure your blog by customizing:
Page elements
Gadgets / widgets
Fonts and colors
Templates
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20. Blogging with Multimedia
Bloggers can upload images and videos from their computer, or third-party multimedia sharing services such as Flickr or YouTube
Adding images to a blog enhances the blog
Most blogging applications resize images so that they fit in the content area
Use images in a compressed image format to reduce size
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21. Blogging with Multimedia
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22. Blogging with Multimedia
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23. Blogging with Multimedia
You can embed content in a blog or on a Web page
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24. Blogging with Multimedia
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25. Blogging with Multimedia
Most video-sharing Web sites contain the embed code that you should place into your blog application’s HTML editor
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26. Blogging with Multimedia
Video blogs are blogs whose posts primarily contain videos recorded by or featuring the owner of the blog
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27. Extending a Blog’s Value
After creating a blog, you should publicize it to increase traffic
Include blog URL in signature
Add links/information to social networking sites
Become an active participant on other blogs
Back (inbound) links and outbound links
Post reciprocal links
Notify search engines (ping) when there is updated content
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28. Extending a Blog’s Value
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29. Extending a Blog’s Value
Advertising is the main source of revenue for most blogs
Leaderboard/banner ads
Skyscraper ads
Context-sensitive text, image, or video advertisements are related to page content
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30. Extending a Blog’s Value
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31. Extending a Blog’s Value
Google AdSense ads displayed on a blog are priced at either
Cost-per-click (CPC)
Paid when users click an advertisement
Cost-per-1000-impressions (CPM)
Paid when the ad appears 1000 times
Blogger offers built-in functionality to work with Google AdSense
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32. Extending a Blog’s Value
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33. Understanding Wikis
A wiki is a collection of Web pages where users can add, discuss, or edit existing content that they, or others, have created
Contributors of wikis usually have to register to be able to make changes
Wikis have an open structure allowing users to create new pages and link existing pages
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34. Understanding Wikis
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35. Understanding Wikis
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36. Understanding Wikis
Many wiki providers host wiki applications on their own servers and allow contributors to use their features at no cost
They charge additional fees for increased storage
Domain names assigned by hosting services typically contain elements of both the provider’s and user’s domain name
Custom domain names are shorter and easier to remember
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37. Understanding Wikis
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38. Understanding Wikis
Wikis can be used in many different settings, such as in a college information technology course
Students can post and share their notes
Users can create or edit an article using a WYSIWYG editor
Wiki administrator can track how page was modified over time, and who made each change
Revisions page
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39. Understanding Wikis
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40. Wikipedia Successful online encyclopedia generated by contributors
Contains more than 3.1 million articles
Sandbox page helps users learn how to use the wiki application software
New articles are first posted in a private section until reviewers provide feedback and corrections are made
Moved to live site after corrections are made
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41. Wikipedia
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42. Google Wave
Integrated collaboration tool that combines features from blogs, wikis, instant messaging, and
Streams of communication are called waves
Waves are composed of blips
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43. Google Wave
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44. Summary
Blogs and wikis facilitate the process of creating and sharing online content
Three-tiered architecture of Web applications
Blogging is a popular tool for individuals and organizations
Blogs usually are authored and maintained by individuals, whereas wikis reflect the knowledge of a community
Wikis are a useful collaboration tool
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45. Chapter 2 Complete