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Web 2.0

Web 2.0

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  • 1. WEB 2.0 - (e)learning 2.0 The consumer as producer The student as teacher
  • 2. The web as it used to be
    • Organisations, companies and individuals who wanted to publish content.
    • Some technical skills and somewhere to publish your content needed.
    • One-way communication
  • 3. The web today
    • The old ”model” still used extensively, but how about…
  • 4. Web 2.0 (coined 2004)
    • ”… second generation of web-based communities and hosted services — such as social-networking sites, wikis and folksonomies — which aim to facilitate collaboration and sharing between users.” (Wikipedia)
    • ”… technologies such as weblogs, social bookmarking, wikis, podcasts, RSS feeds (and other forms of many-to-many publishing), social software, Web APIs, Web standards and online Web services” (Wikipedia)
  • 5. History
  • 6. First out: Blogs (1994/1999)
    • Literally ”Weblog”
    • Public diaries on the web.
    • Comments possible
    • Aggregation through RSS.
    • Many free services, like Blogger.
    • 71 million blogs 2007
    • Now also microblogging
    • Different purposes
      • Company blogs
      • Private blogs
      • Semi-professional blogs (seeking fame, earning money through advertisments on highly nisched content)
  • 7. Wikis (1995)
    • ” Wiki wiki” is Hawaiian for ”fast”.
    • Name chosen for ”quick web”
    • Anyone can edit pages.
    • Wikipedia most common example
    • Recording a company’s collective knowledge for internal purposes
  • 8. RSS (1999)
    • Aggregation - keep track of changes on many web sites
      • Blogs
      • Newspapers
    • Support in browsers, web services and dedicated RSS-readers
    • Mobile reader on www. google . com/reader/m/
    • Look for:
  • 9. Social Software (coined 2002)
    • Broad categorisation of software, that usually ”…allow users to interact, share, and meet other users.” (Wikipedia)
    • Includes most of what is discussed in this lecture.
  • 10. Folksonomies (2002)
    • ” the practice and method of collaborative categorization using freely-chosen keywords called tags.” (Wikipedia)
    • Compare with ”taxonomies”
    • Often combined with ”social bookmarks”
      • http://www.furl.net/
      • http://del.icio.us/
      • http://www.flickr.com
  • 11. Podcasts (coined 2004)
    • ” a digital media file, or a series of such files, that is distributed over the Internet using syndication feeds [≈RSS] for playback on portable media players and personal computers.” (Wikipedia)
    • No iPod needed!
    • Uses RSS with enclosures
  • 12. Social network services
    • “ A social network service focuses on the building and verifying of online social networks for communities of people who share interests and activities, or who are interested in exploring the interests and activities of others, and which necessitates the use of software.
    • Most social network services are primarily web based and provide a collection of various ways for users to interact, such as chat, messaging, email, video, voice chat, file sharing, blogging, discussion groups, and so on.”
    • Some examples (wikipedia)
      • Facebook (34.000.000 users)
      • Myspace (200.000.000 users(?))
      • Orkut (67.000.000 users)
      • Friendster (47.000.000 users)
    • Note: Delicate privacy questions!
  • 13. Collaborative editing
    • Sharing and simultaneously editing documents
    • SubEthaEdit - collaborative simultaneous coding
    • Google docs - word processing and spreadsheets (docs.google.com)
  • 14. Finding things on the net
    • Traditional: Search engines
    • Folksonomic approach:
      • “ Tag clouds” shows what’s hot and what’s related. http://del. icio .us/tag/ and http://www. technorati .com/tag/ are good examples.
      • Look at bookmarks from people with common interests
  • 15.
    • Traditional: Journalists, editors, peer-review, “gurus”
    • How can we trust content found on the webb?
      • Wikipedia debate
    • Services
      • Digg
      • Furl - including bookmarks and grading by people you trust
      • Del.icio.us
    Trust and reputation on the net
  • 16. Making money
    • Advertisments
      • Directed advertisments valuable!
      • Knowledge about you and your networks is hard currency for advertisers
      • When logged in to a google account, google can track what you do (unless disabled)
      • Facebook worth $286 per user, not without reason
      • Market value of Google: $ 121,198,739,200
      • (market values as per 2007-09-05)
  • 17. … but they provide great stuff!
    • Google web2.0 applications
      • Google docs (web-based office suite)
      • Google calendar (web-based calendar)
      • Google reader (web-based RSS-reader)
      • Gmail (web based email with 2+GB disk)
      • Google presentation(?)
      • Google wiki(?)
      • Blogger (google)
      • Youtube (google)
  • 18. Web 2.0 and education - (e)learning 2.0
    • ” refers to a second phase of e-Learning based on Web 2.0 and emerging trends in eLearning. It can include features such as
      • eLearning where students create content, collaborate with peers through mechanisms such as blogs, Wikis, threaded discussions, RSS and others to form a learning network with distributed content creation and distribution of responsibilities.
      • eLearning that takes advantage of many sources of content aggregated together into learning experiences.
      • eLearning that utilizes various tools including online references, courseware, knowledge management, collaboration and search.”
      • (Wikipedia)
  • 19. Social constructivism
    • (The most?) “hot” current learning theory - focus on collaborative and social dimensions of learning
    • Zone of proximal development
      • ” the distance between the actual developmental level as determined by independent problem solving and the level of potential development as determined through problem solving under adult guidance, or in collaboration with more capable peers” (Vygosky)
    • Peer learning - (most?) learners often learn more effectively together than individually.
    • ” Lev Vygotsky's social constructivist principles can be applied in new collaborative tools such as blogs, wikis, and podcasts.” (Wikipedia on Social Constructivism)
  • 20. Some activities for (e)learning 2.0
    • Reflective blogs
    • Collaborative bookmarking (del.icio.us, furl)
    • Collaborative writing (google docs, wikis)
    • Discussions (PingPong, blog comments, instant messaging)
    • Podcasting (lectures - prepare, watch, review)
    • Mobile notes (write notes in a blog, watch with mobile RSS reader)
    • Micro learning (learning when you have a minute or two, accessing learning content anywhere, anytime)
    • Read RSS-content from interesting sources (including your own and other’s web-based bookmarks!); also possible from mobile phones.