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Slide 1 - College of Technology


									2   Publishing Online

                         Web 2.0:
                        Concepts and
Lecture Objectives

1. Understand the structure of web based applications
2. Distinguish between a user blog and corporate blog
3. List the web based applications that can be used to
   develop a blog
4. Understand ways a blogger can increase traffic to
   their blog
5. What are popular blog sites
6. What is a wiki
     – What are popular wiki sites
     – What are popular wiki applications
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Impact of Social Media

Would you name your child Facebook?
Infographic: Whose using social media
If social media went to high school
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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

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The Structure of Web-based
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

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The Structure of Web-based
Many Web applications use a three-tiered
 structure that allows users to interact with the
 Web site
     – Presentation tier deals with presentation of
     – 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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A Database-Backed Web

Web 2.0 is often referred to as a read/write
 Web, or a database-backed Web
     – Web applications read from or write to a database

A Web server processes requests for Web
 pages sent over the Internet from a Web client
     – Client-server model

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A Database-Backed Web

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A Database-Backed Web

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Blog Comics
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

     – Blog members read and follow a blog

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Corporate Blogs

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Understanding Blogs

Citizen journalists share their thoughts about
 news and events

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News and Opinion Blogs

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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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Searching Frequently Updated
Web Content

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Web-Based Blogging

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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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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
 You can edit or
  delete posts

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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
     – Email and mobile settings
     – Permissions settings

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Interacting with a Blogger Blog

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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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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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Blogging with Multimedia

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Blogging with Multimedia

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Blogging with Multimedia

You can embed content in a blog or on a Web

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Blogging with Multimedia

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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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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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Extending a Blog’s Value

After creating a blog, you should publicize it to
 increase traffic
     – Include blog URL in e-mail 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

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Extending a Blog’s Value

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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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Extending a Blog’s Value

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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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Extending a Blog’s Value

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Popular Blogs

 1. Boing Boing: Cultural Curiosities and Interesting Technologies
 2. TechCrunch: Web 2.0 products and companies
 3. Lifehacker: Tips and downloads for getting things done
 4. Engadget: Technology and consumer electronics
 5. Dosh Dosh: Online Marketing and Social Media
 6. Gizmodo: the Gadget Guide
 7. The Official Google Blog: Insights from Googlers into
    Google products, technology and the Google culture
Top 50 Social Media Blogs of 2011


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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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Understanding Wikis

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Understanding Wikis

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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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Understanding Wikis

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Understanding Wikis

Wikis can be used in many different settings,
 such as in a college information technology
     – 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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Understanding Wikis

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Successful online encyclopedia generated by
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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 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
 Blogs usually are authored and maintained by
  individuals, whereas wikis reflect the knowledge of a
 Wikis are a useful collaboration tool

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