Web 2.0

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WEB 2.0

• What is a web 2.0?

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What is Web 2.0?

• It is Second generation of services available on
  the Web that lets people collaborate and share
  information online
• O'Reilly Media and MediaLive International
  popularized the term
• Google is now seen as the torch bearer of the
  term by the media
• From a technology perspective Web 2.0 uses AJAX,
  Mashups and RSS predominantly

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Web 2.0 Evolution Towards a Read/Write Platform
Web 1.0(1993-2003) Pretty much HTML pages viewed through a browser Web 2.0(2003- beyond)Web pages, plus a lot of other content shared over the web, with more interactivity more like an application than a page
Read Mode Write Contribute
Page Primary Unit of content Post / record
static State dynamic
Web browser Viewed through Browsers, RSS Readers, anything
Client Server Architecture Web Services
Web Coders Content Created by Everyone
geeks Domain of mass amatuerization
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What is Web 2.0?

• The participatory web
• The amateurization of the web
• The social web
• The user-focused web

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What is Web 2.0?

• The Participatory Web
• . It marks the progression from static
• web pages to dynamic, interactive ones
• . Read/write web
• . Sharing, collaboration, user
• involvement
• . Reviews
• . Comment on news stories
• . Upload photos
• . Share digital videos

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What is Web 2.0?

• The Amateurization of the Web
• . The average person can put their work
• on the web
• ex. Photographers, journalists,
• aspiring writers, students, etc.

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What is Web 2.0?

• The Social Web
• . Social networking and community-
• oriented sites
• ex. myspace.com, facebook.com,
  tagged.com, twitter,com, etc.

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What is Web 2.0?

• The User-focused Web
• . The user needs are catered
• participate, organize, read, write play
• online

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Why is it important? Why use Web 2.0?

• Value Content Creation
• Custom search engines
• Collaboration
• Communication
• Web-based journals/blogs
• Outreach
• Wikis
• Instruction
• Podcasts
• Training
• Videos and photos
• Resource

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Why is it important? Why use Web 2.0?

• Participation in Knowledge Communities
• . Web 2.0 Social networks
• myspace.com, multiply.com,
• tagged.com, facebook.com, twitter.com
• friendster.com, etc.

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Why is it important? Why use Web 2.0?

• Collaboration
• Assist people and communities to work with
  distant people or community.

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Web 2.0 Best Practices

• Create technical requirements
• Check out what others are doing
• Ask the community for help
• Prototype
• Consider different types of solutions

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Collaboration

• With the advent of Web 2.0, we find ourselves in
  an age of participation a time when all users
  are empowered to contribute, regardless of
  background or position.

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Web 2.0 Tools

• Blogs a blog, or weblog, is an online journal
  or web site on which articles are posted and
  displayed in chronological order.
• . Subject resources, book reviews, library
  news, discussion groups
• . Blogging software
• http//wordpress.com
• http//www.livejournal.com
• http//www.blogger.com

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Web 2.0 Tools

• RSS and Newsreaders
• Really Simple Syndication is a technology that
  enables publishers to syndicate news and other
  contents on the web
• Libraries are keeping up to date by subscribing
  to news information sources via RSS feeds.

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Web 2.0 Tools

• WIKIS Wiki technology provides an area for
  effortless collaboration and knowledge sharing
  among a community of users without any
  programming knowledge. Features add a new
  page, edit page, search, comments, files and
  attachments, revision comparison.

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Web 2.0 Tools

• Social Bookmarking
• . Allow users to bookmark favorite web site
  articles, blog posts, podcasts, images, other
  web-based materials for future retrieval.
• ex. http//del.icio.us
• www.furl.net

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Web 2.0 Tools

• Photosharing
• . Users are uploading, rating, reviewing,
  annotating, searching, browsing, tagging,
  creating a wealth of personal, cultural
  historical digital image collections.
• ex. www.flicker.com
• www.photobucket.com
• www.picazza.com

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Web 2.0 Tools

• Social cataloging
• . Enable users to create personal catalogs
  of their book, CD, DVD, game
• collections, and share them with others.
• ex. www.librarything.com

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Web 2.0 Tools

• Video Sharing
• . Enable users to share, rate, comment,
  watch gather around video content free of
  charge and technical expertise.
• . Amateur filmmakers, karaoke hopefuls,
  even talented pets have all been given a venue to
  display their work.
• ex. youtube.com

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Web 2.0 Tools

• Online Chatting is the exchange of typed-in
  messages requiring one site as the repository for
  the messages (or "chat site") and a group of
  users who take part from anywhere on the
  Internet.
• . Yahoo messenger
• . Google talk
• . Skype
• . Meebo

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Web 2.0 Tools

• Online Text Messaging Provides text messaging
  from internet to cell phone/mobile phone.
• Ex. Chikka.com
• Yahoo messenger

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What is AJAX?

• Ajax is not a technology in itself
• Shorthand for Asynchronous JavaScript and XML
• The term was first used by Adaptive Path only in
  Feb 2005
• Removes the need to reload entire web page each
  time the user makes a change. Increase the web
  page's interactivity, speed, and usability.
• XML is used as the format for transferring data
  between the server and client. XML files may be
  created dynamically by some form of server-side
  scripting
• The Ajax technique uses a combination of XHTML
  and CSS, JavaScript, XMLHttpRequest /IFrame
  object

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Microsoft as a pioneer in Ajax

• Though hard to believe by public, in reality it
  all started with IE 3.0s IFrame (and later by
  Netscapes Layer) innovation to do asynchronous
  loading of content
• Todays AJAX core is based on Microsoft
  XMLHTTPRequest Object introduced in IE 5.0
• It was used and exploited by Outlook Web Access
  (OWA) in Exchange 2000 timeframe