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Lecture - DM110 Emerging Web Media - National University of Ireland, Galway - October 2008

Lecture - DM110 Emerging Web Media - National University of Ireland, Galway - October 2008

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Social Media and Web 2.0 Social Media and Web 2.0 Presentation Transcript

  • Digital Enterprise Research Institute www.deri.ie Social Media and Web 2.0 Alexandre Passant <alexandre.passant@deri.org> Digital Enterprise Research Institute, National University of Ireland, Galway DM110 Emerging Web Media 20th October 2008  Copyright 2008 Digital Enterprise Research Institute. All rights reserved. Chapter
  • Introductions Digital Enterprise Research Institute www.deri.ie  Alexandre Passant  Postdoctoral researcher  DERI, NUI Galway  Social Software cluster  Research Interests  Web 2.0 and Social Media  Semantic Web and Linked Data  Combining both to provide advanced / intelligent services on the Web for end-users  What about you ?
  • Previous lectures Digital Enterprise Research Institute www.deri.ie  Overview of the World Wide Web  History and technical architecture, HTML programming  Publishing content on the Web  Content Management Systems, Drupal case-study  Digital media  Formats for multi-media content on the Web  XML and XHTML  Validating HTML and going further with XHTML  Translating data from one format to another one  RSS to aggregate data, XSLT to translate it
  • But ... Digital Enterprise Research Institute www.deri.ie  Is there a way to publish data on the Web without high-level technical skills ?  Focus on the content rather than on the technical issues  A large-scale writable-Web  How to use the Web as a medium to share data and get new relationships ?  The Web as a platform  On-line social networking  This is exactly what this lecture is about !
  • Agenda Digital Enterprise Research Institute www.deri.ie  General introduction to Social Media and Web 2.0  Blogs  Wikis  Media-sharing and Online Social Networking  Overview of various Web 2.0 services  Licensing issues  Web 1.0 / Web 2.0 / Semantic Web  Assignments  Hands-on sessions during the lecture
  • From the Web to a “Social Web” The New Yorker, 1993 “On the Internet, nobody knows you’re a dog.” 6
  • From the Web to a “Social Web” The New Yorker, 1993 The New Yorker, 2005 “On the Internet, nobody knows “I had my own blog for a while, you’re a dog.” but I decided to go back to just pointless, incessant barking.” 6
  • What is Social Media ? Digital Enterprise Research Institute www.deri.ie  http://en.wikipedia.org/wiki/Social_media  “Social media uses the ‘wisdom of crowds’ to connect information in a collaborative manner.”  “Social media can take many different forms, including message boards, weblogs, wikis, podcasts, pictures and video.”  Popular examples (details later)  Wikipedia, Flickr, YouTube, Facebook, Twitter, Upcoming, SecondLife, Digg, del.cio.us, 43things ...  Related terms  Web 2.0, Social Web, social software,  Social networks, social bookmarking, user-generated content
  • What is Web 2.0 ? Digital Enterprise Research Institute www.deri.ie  A term made popular by Tim O’Reilly  http://www.oreillynet.com/pub/a/oreilly/tim/news/ 2005/09/30/what-is-web-20.html  “A set of principles and practices that tie together a veritable solar system of sites that demonstrate some or all of those principles, at a varying distance from that core.”  ... but also a copyrighted term for conferences
  • Web 2.0 principles (O’Reilly) Digital Enterprise Research Institute www.deri.ie  The Web as a platform  Harnessing collective intelligence  Data is the next “Intel Inside”  End of the software release cycle  Lightweight programming models  Software above the level of a single device  Rich user experiences  The long tail
  • Web 2.0 meme map Digital Enterprise Research Institute www.deri.ie
  • Web 2.0 tagcloud Digital Enterprise Research Institute www.deri.ie
  • Social Media in simple terms Digital Enterprise Research Institute www.deri.ie  Users  Users post content  Content  Users share content  Tags  Users tag content  Interactivity  Users comment content  Users browse content via tags  Users connect directly
  • How many Web 2.0 services ? Digital Enterprise Research Institute www.deri.ie  A lot !  See http://techcrunch.com  But some of them may not survive ...
  • Weblogs and weblogging Digital Enterprise Research Institute www.deri.ie
  • What is a blog ? Digital Enterprise Research Institute www.deri.ie  A blog, or weblog (web log) is an online journal  “A web application which contains periodic time-stamped posts on a common (usually open-access) webpage”  Posts are often shown in reverse chronological order  Usually, blog posts can be commented by the readers  Generally features RSS feeds to syndicate latest news  A wide range of use-cases:  Individual diaries, group blogs on technical topics  Political campaigns, media programs and corporations (e.g. the Google Blog)  Grassroots journalism  Well-known bloggers may even blog as a daily-job
  • Anatomy of a weblog (frontend) Digital Enterprise Research Institute www.deri.ie
  • Anatomy of a weblog (backend) Digital Enterprise Research Institute www.deri.ie
  • State of the blogosphere Digital Enterprise Research Institute www.deri.ie
  • Why ? Who ? How ? Digital Enterprise Research Institute www.deri.ie http://technorati.com/blogging/state-of-the-blogosphere/
  • Tagging blog posts Digital Enterprise Research Institute www.deri.ie  A simple for user-generated classification  Anyone can use his own term  No need to learn a predefined vocabulary  Evolves among time, thanks to users themselves  Tagging  A tripartite relationship between a User, a Resource, a Tag  Folksonomy  The result of tagging actions in a given platform  Tagclouds allow visual representation of folksonomies  As we will see later, many media-sharing platform also extensively use tagging
  • Serendipity through tagging Digital Enterprise Research Institute www.deri.ie
  • How to discover blogs ? Digital Enterprise Research Institute www.deri.ie  Lots of people blog, but data is spread on the Web  By nature, the Web is distributed, so is weblogging  Anyone can create a weblog, but how to find it ?  Blogrolls and hyperlinks  Will help to find related blogs from a particular one  Dedicated search engines  Technorati - http://techorati.com  Google Blogsearch - http://blogsearch.google.com  Using those search engines, you can then use your RSS aggregators to follow interesting news  On-line aggregators, e.g. http://google.com/reader  Desktop applications, e.g. http://netnewswire.com
  • Create your own blog ! Digital Enterprise Research Institute www.deri.ie  Free online services  blogger.com, wordpress.com ...  Open-source tools  WordPress, B2Evolution ...  You will need you own hosting space on the Web, generally with ability to embeds PHP in webpages and MySQL for data storage  Some CMS also offer blogging capabilities  Drupal, Joomla ...  You may need to install a particular blogging module  Let’s create your own blog !  On wordpress.com
  • Wikis Digital Enterprise Research Institute www.deri.ie  http://en.wikipedia.org/wiki/Wiki  A wiki is a page or collection of Web pages designed to enable anyone who accesses it to contribute or modify content, using a simplified markup language.[1][2] Wikis are often used to create collaborative websites and to power community websites.  WikiWikiWeb (http://c2.com/cgi/wiki) was the first site to be called a wiki. Ward Cunningham started developing WikiWikiWeb in 1994,
  • Wiki principles Digital Enterprise Research Institute www.deri.ie  A wiki is an informational resource, like a reference manual, encyclopedia, or handbook  The most famous is Wikipedia, a highly used, online, free- access encyclopedia  It amasses to a group of web pages that allows users to add content and also allows others to edit the content:  It relies on cooperation, checks and balances of its members, and a belief in sharing of ideas  Contrary to weblogs, wikis focus on community agreement rather than on personal views of a topic  This creates a community effort in resource and information management, disseminating the 'voice' amongst many instead of concentrating it upon few
  • What are wikis used for ? Digital Enterprise Research Institute www.deri.ie  Lots of various use-cases  online encyclopaedias  free dictionaries  book repositories  event management  software development  writing research papers  project proposals  But be careful  What is said in a wiki is not necessary the truth !  Always check other information sources
  • Anatomy of Wikipedia Digital Enterprise Research Institute www.deri.ie
  • Anatomy of Wikipedia Digital Enterprise Research Institute www.deri.ie
  • Anatomy of Wikipedia Digital Enterprise Research Institute www.deri.ie
  • Wiki editing and auto-regulation Digital Enterprise Research Institute www.deri.ie  In a Wiki, anyone can edit exiting content, create new pages, and delete existing content  WikiWords are used to create new pages and a simple syntax allows to write pages without HTML  A versioning mechanism allows to browse and retrieve older versions to avoid vandalism  Auto-regulation  People voluntary maintain the wiki to avoid vandalism  Let’s try ! – Choose a Wikipedia page regarding a topic that you like – Edit the page and add a personal comment, without any encyclopedic value (e.g. “This movie rocks, I’ve seen it ten times”) – Let’s come back in 20 minutes ...
  • Media Sharing and OSN Digital Enterprise Research Institute www.deri.ie  Many Web 2.0 websites allow to upload and share data:  Pictures, Videos, Slides, Events, Playlists, Bookmarks, ...  Tag content so that it can be discovered  Most of them include an online social-networking (OSN) component  Meet people because you share the same interests  Object-centric social networking  While some websites are pure OSN  Meet people through others  Various purposes: dating, friendship, business contacts  We will see various examples now !
  • Digital Enterprise Research Institute www.deri.ie
  • Digital Enterprise Research Institute www.deri.ie
  • Digital Enterprise Research Institute www.deri.ie
  • Digital Enterprise Research Institute www.deri.ie
  • Digital Enterprise Research Institute www.deri.ie
  • Digital Enterprise Research Institute www.deri.ie
  • Last.fm use-case Digital Enterprise Research Institute www.deri.ie  Create an account  http://last.fm/  Share your musical tastes  Plug-ins for iTunes and iPod  Discover new content  Based on what you’re listening to  Find people you may like  Because you’re listening to the same bands  And create your social network  Announce concerts, subscribe to events  Chat with people online before you meet them in real life
  • Last.fm use-case Digital Enterprise Research Institute www.deri.ie  Create an account  http://last.fm/  Share your musical tastes  Plug-ins for iTunes and iPod  Discover new content  Based on what you’re listening to  Find people you may like  Because you’re listening to the same bands  And create your social network  Announce concerts, subscribe to events  Chat with people online before you meet them in real life
  • Last.fm use-case Digital Enterprise Research Institute www.deri.ie  Create an account  http://last.fm/  Share your musical tastes  Plug-ins for iTunes and iPod  Discover new content  Based on what you’re listening to  Find people you may like  Because you’re listening to the same bands  And create your social network  Announce concerts, subscribe to events  Chat with people online before you meet them in real life
  • Connecting things ... and people Digital Enterprise Research Institute www.deri.ie
  • Connecting things ... and people Digital Enterprise Research Institute www.deri.ie
  • Online Social Networking Digital Enterprise Research Institute www.deri.ie  While the previous websites feature social- networking components, this is not their main purpose  You can use them only to publish / discover data  Some websites are pure Social Networking:  Friendships and relationships  Offline meetings  Curiosity about others  Business opportunities and hob hunting  They allow a user to create and maintain an online network of close friends or business associates for social and professional reasons
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  • Other Web 2.0 services Digital Enterprise Research Institute www.deri.ie  Blogs, wikis, OSN and media sharing are the most popular form of Social Media websites  But many other services are available on the Web  Microblogging  Videoblogging  Podcasting  Social Aggregators  ...  Mash-ups will allow to combine data from various Web 2.0 services to create your own  Eg: Display upcoming concerts on a GoogleMap – Topic of our next lectures
  • Microblogging ? Digital Enterprise Research Institute www.deri.ie  Short updates of your activity lifestream  Publish from various devices and share it to anyone  A new form of agile communication  Twitter.com  The most famous microblogging website  140 characters max per update  Let’s try  Go to http://twitter.com and create an account  Start publishing some data that will be available on your public timeline http://twitter.com/myusername  Find people that you want to follow
  • Digital Enterprise Research Institute www.deri.ie
  • Social Aggregators Digital Enterprise Research Institute www.deri.ie  How to let people browse my social data from a single entry point  Social aggregators can help – Eg: FriendFeed  We will see in our next lecture how the Semantic Web can provide alternatives, but thanks to open standards and process  Privacy issues  What do you want to publish ?  Who can access it ? – Do you really want your lecturer to see your latest party pictures ?  Work still must be done in that direction !
  • Licensing issues Digital Enterprise Research Institute www.deri.ie  When you publish content online, you may allow people to reuse it, but you want to keep some kind of ownership  So that your work can be recognized  Licensing does not unallow to give your work ‘for free’ – E.g.: Free-source software licenses (GPL ...)  Creative Commons - http://creativecommons.org  Share, Remix, Reuse — Legally  Decide what people can do with your content – Reuse it ? Edit it ? Sell it ?  6 different contracts  Some bands put their songs using a CC-licence – http://jamendo.com
  • Creative Commons Digital Enterprise Research Institute www.deri.ie
  • Find, identify and re-use CC content Digital Enterprise Research Institute www.deri.ie
  • Find, identify and re-use CC content Digital Enterprise Research Institute www.deri.ie
  • Find, identify and re-use CC content Digital Enterprise Research Institute www.deri.ie
  • Find, identify and re-use CC content Digital Enterprise Research Institute www.deri.ie
  • Web 1.0 / Web 2.0 Digital Enterprise Research Institute www.deri.ie Web 1.0 Web 2.0 Platforms Netscape, Internet Explorer Google Services, AJAX, Flock Web Pages Personal Websites Blogs Portals Content Management Systems Wikis Encyclopediæ Britannica Online Wikipedia Talk Netmeeting Skype, Asterisk Knowledge Directories, Taxonomies Tagging, Folksonomies Referencing Stickiness Syndication Content Akamai BitTorrent, P2P Events Evite Upcoming.org (updated from O’Reilly)
  • ... 2.0 or 0.1 ? Digital Enterprise Research Institute www.deri.ie  “Web 2.0” is not far from the initial idea of the Web  “The idea was that anybody who used the web would have a space where they could write and so the first browser was an editor, it was a writer as well as a reader. Every person who used the web had the ability to write something. [...] When you write a blog, you don't write complicated hypertext, you just write text, so I'm very, very happy to see that now it's gone in the direction of becoming more of a creative medium” - Tim Berners-Lee - Interview with the BBC (2005) - http://news.bbc.co.uk/1/ hi/technology/4132752.stm  We’ll see in our next lecture that the (Social) Semantic Web is even more near from the initial vision of the Web !
  • Assignment Digital Enterprise Research Institute www.deri.ie  Choose a particular project / interest that you have  Describe and implement your Social Media strategy to promote it to a worldwide audience !  Define and argue which tools you will use (blogs, OSN ...)  Then create some account(s) and publish content ... keep it alive if you can, and you might be able to create a community around it !  Finally, provide a single entry point so that people can discover all your Social Media regarding to that topic content from a single entry point – HTML document with links to different sources, aggregated RSS feeds, FriendFeed accout ...  mailto: alexandre.passant@deri.org before 09 Nov.
  • Credits Digital Enterprise Research Institute www.deri.ie  Some slides based on:  Last year lectures by John Breslin  Social Semantic Web tutorials – WWW2008 – RWSS2008  CC-Pictures:  http://en.wikipedia.org/wiki/Image:HNL_Wiki_Wiki_Bus.jpg  http://flickr.com/photos/laughingsquid/462105429/  http://flickr.com/photos/stabilo-boss/93136022/