Transcript Library 2.0 : Getting from here to there

Introduction to Web 2.0
Education in distributed networks
Image by paradigm4
Stephan Ridgway, 2009
TAFE NSW, Sydney Institute, Workforce Development Unit
http://wiki.tafensw.edu.au/sydney/mylearning/index.php/Introduction_to_Web_2.0
What is web2.0?
Web 2.0 refers to a perceived second generation of web development and
design, that facilitates communication, secure information sharing,
interoperability, and collaboration on the World Wide Web. Web 2.0
concepts have led to the development and evolution of web-based
communities, hosted services, and applications; such as social-networking
sites, video-sharing sites, wikis, blogs, and folksonomies. - Wikipedia, 20
April 2009
A phrase made famous by Tim O'Reilly @ a conference in 2004
Web 2.0 defining characteristics
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the Web as a platform, web services which use the browser, easy to use
User generated content the driving force
Easy to create, distribute and share content, often collaboratively via RSS
Folksonomic content classification using TAGS
The "Network Effect" - services improve the more people who join - e.g
del.icio.us, flickr
• Makes it easy to find other users with similar interests and form online
communities – Social Software
Web 1.0 vs Web 2.0
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Web 1.0 was about reading, Web 2.0 is about writing
Web 1.0 was about companies, Web 2.0 is about communities
Web 1.0 was about client-server, Web 2.0 is about peer to peer
Web 1.0 was about HTML, Web 2.0 is about XML
Web 1.0 was about home pages, Web 2.0 is about blogs
Web 1.0 was about portals, Web 2.0 is about RSS
Web 1.0 was about taxonomy, Web 2.0 is about tags
Web 1.0 was about wires, Web 2.0 is about wireless
Web 1.0 was about owning, Web 2.0 is about sharing
Web 1.0 was about Netscape, Web 2.0 is about Google
Web 1.0 was about web forms, Web 2.0 is about web applications
Web 1.0 was about dialup, Web 2.0 is about broadband
Web 1.0 was about hardware costs, Web 2.0 is about bandwidth costs
Web 1.0
Web 2.0
Copacetic
Examples of Social Software
• Blogs & online journals - Blogger, LiveJournal, Edublogs
• Web-based RSS feed readers - Bloglines, Google Reader
• Wikis & collaborative writing tools - Wikispaces, Mediawiki
• Social networking sites - MySpace, Yahoo 360
• E-portfolios and Personal Learning Environments (PLEs) - elgg.net Ning
• Media publishing & sharing - Flickr YouTube
• Social bookmarking - del.icio.us, Diigo
• Podcasting, vblogging - Odeo, Podomatic, blip.tv Viddler
RSS – The distributed model
• RSS is the connecting fabric of web2.0 services,
providing the conduit for information flows between
distributed networks.
• Means to subscribe, syndicate and remix (mashups)
• All about the connected information flows between
decentralised nodes, characterised by a willingness to
share, mix and feed.
Image by Dion Hinchcliffe€
Blogs & Online Journals
• "blog" is derived from "Web log”, 1997
• Online diary, regularly updated & displayed with the newest entry at the top
• blog combines text, images and links to other blogs
• Very easy to create and publish i.e. blogger
• Bloggers speak to other bloggers via links & comments
• RSS used for distribution & syndication
Educational uses for blogs
• Students can use blogs to process and record what they learn.
• Teachers can use blogs to process and record what they teach.
• Flexibility for learners - students can catch-up if they miss a
class.
• A summary of a course that prospective students or new
teachers can refer to.
• Students can refer to each other's blog and support each
other's learning.
• Other faculty can refer to course blogs of their colleagues and
improve team teaching.
• Topical and subject focused blogs can be an engaging learning
resource.
• Fosters a Community of Networked Learners
Source: The Networked Learning workshops, Leigh Blackall
Wiki’s
• A wiki is a website that can be easily edited from
within a web-browser.
• They are especially suited for collaborative authoring.
• Can be edited by anyone on the network or by
members of a defined community
• All edits are archived and can be rolled back to at any
time
• Wikipedia - the free, collaboratively built online
encyclopedia - is the best known example of a wiki.
Blogs vs Wikis
Blogs
• personal, less collaborative, a post is owned by poster
• typically monologue with audience commentary
• text is considered to be static: once posted, the posting doesn't
change much
• immediate: written in the moment, written of the moment
Wiki’s
• public & open to collaboration
• aim is creation of fluid documents
• knowledge is ephemeral: it changes, can be changed
Examples
Blogs
• Our Class 2006 - A blog for an Adult Migrant English
Programme (AMEP)class at St George College of
TAFE
• NSW LearnScope
Wikis
• Wikipedia - the free, collaboratively built online
encyclopedia
• myLearning
Tagging
• Tagging is a method of categorisation whereby
key words are assigned to web based
resources by users
• Each user "tags" the resources arbitrarily
according to their own personal preferences.
• tags are shared (rss) & grouped to form
knowledge sharing networks
Taxonomy - The science of classification
• From the greek verb:
• Taxis = "to classify"
• Nomos = "law, science, economy"
• Hierarchical-enumerative top down tree like
structure
• Hierarchies designed and maintained by
experts
• Repositories catalogued by experts - libraries
• Structure imposed on the world of objects
• Centralised classification
Folksonomy - Social classification
• Folk + Taxonomy meaning that it emerges from the
people
• Open democratic system
• Constantly evolving based on user interactions and
consensus
• tags capture the social fabric at that moment in time
• Structure is an emergent property
• Well suited to rapidly changing heterogeneous
information sources such as the internet and social
networks
• Distributed classification
Web services that use Tags
• Del.icio.us - A social bookmarking site that allows
users to bookmark many sites and then tag them with
many descriptive words, allowing other people to
search by those terms to find pages that other people
found useful.
• Flickr - A service that allows users to tag images with
many specific nouns, verbs, and adjectives that
describe the picture. This is then search-able.
• Gmail - A web-mail site that was one of the first to
allow categorization of objects using tags, known as
"labels" on emails.
• LibraryThing - A social book cataloguing and
community website, tags feature heavily here.
• Technorati - A weblog search engine.
Podcasting & Vblogging
• Grew out of the blogging movement, form of audio blogging
• Uses same subscription & distribution model pioneered by the
blogging movement based upon RSS
• About audio when and were you want it
• Gains mass visibility in 2005, with podcasting support in Apple
iTunes
• Easy to produce and distribute
Networks