1. Layoutbyorngjce223,CC-BY1Web Training 2013 Unicam SASSocial Networks,Job Searching &Research (1)Carlo Vaccari - UniCam carlo.vaccari@unicam.ithttp://vaccaricarlo.wordpress.commaggio-giugno 2013

2. Layoutbyorngjce223,CC-BYThis material is distributed under the Creative Commons"Attribution - NonCommercial - Share Alike - 3.0", available athttp://creativecommons.org/licenses/by-nc-sa/3.0/ 3. Layoutbyorngjce223,CC-BY3indexWeb 2.0: the new WebSocial Networks overviewFacebook and TwitterSocial Network & Job searching Linkedin and other websites Risks of the use of social networksSocial networks for Science and Researchers 4. Layoutbyorngjce223,CC-BY4presentationHow many of you use FacebookMySpaceLinkedinTwitterFlickrYouTubeSlideshareGoogle+BloggerWordpressWikimediaWikipedia r/wGoogle DocsSmartphoneTablet 5. Layoutbyorngjce223,CC-BY5The Web todayIntro (Information Revolution):http://www.youtube.com/watch?v=-4CV05HyAbMITU Fact and Figures:ITU ICT Facts Figures 2011Internet World stats:http://www.internetworldstats.com/stats.htmTrends: Meeker Internet Trends Dec 2012Yesterday: wayback machine http://www.archive.org 6. Layoutbyorngjce223,CC-BY6The Web todayWebsites from http://www.netcraft.com 7. Layoutbyorngjce223,CC-BY7Web 2.0From a functional point of view, what characterizes Web 2.0 isbasically the central and leading role of the user.User becomes more and more:a controller of data and navigating contenta producer of informationthe main judge of the network productsThe communication "one to many" moves to "many to many"video The Machine is us/ing ushttp://www.youtube.com/watch?v=6gmP4nk0EOE 8. Layoutbyorngjce223,CC-BY8Web 2.0 examplesGoogle Page Rank, based on "opinions" (links) of other sitesWikipedia encyclopedia with entries determined andconstructed by usersEbay, where each seller and buyer has a public reputation givenby other users depending on his behaviorBlog, where participation replaces communicationSocial networks (Flickr, Myspace, Facebook) that collect andorganize content provided by users 9. Layoutbyorngjce223,CC-BY9Web 2.0 social 1Social Softwaresoftware that gives users a way to connect (usually through thecontents sharing).- Value sharing: in social applications users participationincreases contents quality and quantity and therefore gives ahigher value of the service. The collective dimension, then, is theguarantee of the existence and quality of service. Eg Wikipedia- Value sharing and cooperation: cooperation on contents notonly shared but co-created, becomes an additional element ofvalue. The ability to "create together" contents increases of anorder of magnitude the degree of relationship between peopleand promotes sociability from the moment of creating content.Eg docs.google.com 10. Layoutbyorngjce223,CC-BY10Web 2.0 social 2Which is the value of the contents of Web 2.0 applications?As a service acquires contents (and value) through the directparticipation of users and visitors, Web 2.0 applications are in asense "hostage" of the userHigh and sustained user participation is a condition of survival ofsocial networking sitesThe popularity of Web 2.0 service seems to be a critical elementthat sometimes overwhelms the same qualityUser power vs. Big Companies powerWhat should happen if users run away from Google/Facebook?(see Myspace-Facebook) 11. Layoutbyorngjce223,CC-BY11Web 2.0 social 3ParticipationMany services adopt mixed policies to promote participation (Egsome parts of the site visible to everyone)Another factor to consider is the degree of customization of usersparticipation. Systems such as WordPress, for example, allow theowners of the blog to set up different levels of access to contentproduction and to enable comments at all or only to registeredusersAnother aspect to consider: many Web 2.0 services combine freeuse and use fee (freemium) - the paying customers receive thehighest quality services, additional functionality, while not payingare excluded 12. Layoutbyorngjce223,CC-BY12Web 2.0 social 4New authorship dimensions: Copyright and CopyleftProduction, sharing, assessing and putting some content in thenetwork open a lot of issues related to traditional copyrightQuestions:Who owns, in fact, contents shared and commented?It is wholly owned by those who wrote or you can assign towriter AND commentators?And if so, to what extent?Are sufficient and suitable only quantitative criteria to definethe degree of Authorship?All this, moreover, is complicated in the case of collective orco-created content in distributed editors: for example, who is theauthor and owner of publishing rights of Wikipedia voices?Creative Commons see licences 13. Layoutbyorngjce223,CC-BY13social networks: originSocial networks are the heirs of Usenet, the network of discussiongroups (newsgroups) using nntp protocolToday the newsgroups and their archives are under the"protection" of Google, which guarantees the continuation in"web" modehttps://groups.google.com/forum/?fromgroups&hl=en#!browseExample: it.hobby.motociclismoMany terms used in social networks (and in all 2.0 applications)were born in the Usenet community: post, thread, lurker, troll, ... 14. Layoutbyorngjce223,CC-BY14social networksDefinition: web-based services that allow individuals to:- construct a public or semi-public profile within a boundedsystem- articulate a list of other users with whom they share aconnection- view and traverse their list of connections and those made byothers within the system.Today among the most used websites:- Facebook (1)- Linkedin (13)- Twitter (14) 15. Layoutbyorngjce223,CC-BY15social networks 16. Layoutbyorngjce223,CC-BY16social networkshttp://www.youtube.com/watch?v=6a_KF7TYKVc(social network)http://en.wikipedia.org/wiki/List_of_social_networking_websiteshow many friends on facebook?http://en.wikipedia.org/wiki/Dunbar%27s_numberTrend: real-time (like Twitter) and location-based (GPS - mobile) 17. Layoutbyorngjce223,CC-BY17social networks: FacebookGoal: connect real people (otherwise Netlog or MySpace)Used to be recognized (99% of members have a profilepicture), Facebook is useless and boring if you are notrecognizableTimeline: shows an overview of your life on Facebook, with theability to check what has been done or written at a particularpoint in time pastAll activity- People Directory- Control- All settingsPeople vs. Fanpage 18. Layoutbyorngjce223,CC-BY18social networks: Facebookhttp://www.vincos.it/osservatorio-facebook/Expansion in Italy (and other countries):http://www.socialbakers.com/facebook-statistics/italyon http://www.socialbakers.com/ see also pages, brands, appsand advertisingNumbers:http://www.facebook.com/press/info.php?statisticshttp://www.internetworldstats.com/facebook.htmhttp://news.cnet.com/8301-1023_3-57566550-93/facebook-by-the-numbers-1.06-billion-monthly-active-users/http://www.pewinternet.org/Reports/2013/Social-media-users/The-State-of-Social-Media-Users.aspx 19. Layoutbyorngjce223,CC-BY19social networks: TwitterConstant publication of short contents in the network, in the form oftext messages (usually up to 140-200 bytes), images, video, MP3audio, but also bookmarks, citations and noteshttp://en.wikipedia.org/wiki/Micro-blogginghttp://www.twitter.comhttp://it.youtube.com/watch?v=ddO9idmax0o (Twitter)http://stories.twitter.com/URL shortening to fit in 140 bytesused in twitter revolutions Egypt 2011, Tunisia 2010-2011, Iran2009 20. Layoutbyorngjce223,CC-BY20social networks: TwitterTwitter: started in 2006, growth: TPD (tweets per day)2007 40k2008 1M2010 65M2011 - 250MTPS tweets per second records- 6939 TPS 1.1.2011 (Japan time 00:01)http://www.growcial.com/twitter-greets-2013-with-record-breaking-number-of-tweets-per-second/RT - retweetDM - direct message@user - to mention or reply to user# - hashtag also for micro-meme