1. Web 2.0
 Computer Assisted Language Learning
 Class: E4A
 Chinese Name: 謝昊展
 English Name: Michael Hsieh
 Student ID: 497410347
 Instructor: Dr. Joni Chao 趙毓銓老師

2. Outline
 1. Brief Definition
 2. Characteristics
 3. Technologies
 4. Concepts
 5. Usage
 6. Web 2.0 in Education

3. 1. Brief Definition
 Web 2.0 is a loosely defined intersection of web
application features that facilitate participatory
information sharing, interoperability, user-
centered design, and collaboration on the World
Wide Web. A Web 2.0 site allows users to interact
and collaborate with each other in a social media
dialogue as creators (prosumers) of user-generated
content in a virtual community, in contrast to
websites where users (consumers) are limited to
the passive viewing of text content that was
created for them.

4. 2. Characteristics
 Web 2.0 websites allow users to do more than just
retrieve information. By increasing what was already
possible in "Web 1.0", they provide the user with
more user-interface, software and storage facilities, all
through their browser. This has been called "Network
as platform" computing. Users can provide the data
that is on a Web 2.0 site and exercise some control
over that data. These sites may have an "Architecture
of participation" that encourages users to add value to
the application as they use it. Some scholars have
made the case that cloud computing is a form of Web
2.0 because cloud computing is simply an implication
of computing on the Internet.

5. 3. Technologies
 The client-side/web browser technologies used in
Web 2.0 development are Asynchronous
JavaScript and XML (Ajax), Adobe Flash and the
Adobe Flex framework, and JavaScript/Ajax
frameworks such as YUI Library, Dojo Toolkit,
MooTools, jQuery and Prototype JavaScript
Framework. Ajax programming uses JavaScript to
upload and download new data from the web
server without undergoing a full page reload.

6. 3. Technologies

7. 4. Concepts
 Web 2.0 websites include the following features and
techniques: Andrew McAfee used the acronym SLATES
to refer to them:
 1. Search: Finding information through keywords.
 2. Links: Connects information together into a meaningful information ecosystem
using the model of the Web, and provides low-barrier social tools.
 3. Tags: Categorization of content by users adding "tags"—short, usually one-word
descriptions—to facilitate searching, without dependence on pre-made categories.
Collections of tags created by many users within a single system may be referred to
as "folksonomies" (i.e., folk taxonomies).
 4. Extensions: Software that makes the Web an application platform as well as a
document server. These include software like Adobe Reader, Adobe Flash
player, Microsoft Silverlight, ActiveX, Oracle Java, Quicktime, Windows Media, etc.
 5. Signals: The use of syndication technology such as RSS to notify users of content
changes.

8. 5. Usage
 A third important part of Web 2.0 is the social Web, which is a
fundamental shift in the way people communicate. The social web
consists of a number of online tools and platforms where people
share their perspectives, opinions, thoughts and experiences. Web
2.0 applications tend to interact much more with the end user. As
such, the end user is not only a user of the application but also a
participant by:
 Podcasting
 Blogging
 Tagging
 Contributing to RSS
 Social bookmarking
 Social networking

9. 6. Web 2.0 in education
 Web 2.0 technologies provide teachers with new ways
to engage students in a meaningful way. "Children
raised on new media technologies are less patient with
filling out worksheets and listening to lectures"
because students already participate on a global level.
The lack of participation in a traditional classroom
stems more from the fact that students receive better
feedback online. Traditional classrooms have students
do assignments and when they are completed, they are
just that, finished. However, Web 2.0 shows students
that education is a constantly evolving entity. Whether
it is participating in a class discussion, or participating
in a forum discussion, the technologies available to
students in a Web 2.0 classroom does increase the
amount they participate.

10. Application
 1. Collaboration: peer-reviewing and
editing, task or project-based method, online
forum discussion
 2. Tool:
facebook, google, twitter, flicker, yahoo, blog, you
tube, MSN, wikispaces…