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Where it is today and how it is used.
Web 2.0 Where it is today and how it is used.
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Learning Objectives Learn how to blog and find blogs.
Learn how to find and participate in social networks. Learn about RSS and podcasting Learn about wikis Learn about discussion groups Learn about instant messaging
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Communication Media Web 2.0 technology allows more sophisticated internet participation remains the most popular internet application Other activities include: Instant messaging Blogging Podcasting Vlogging
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WEB 2.0 People are the key to Web 2.0
People contribute content in various ways Video files (YouTube) Audio files (podcasts) Personal commentary (blogs, online forums) Scholarly information (wikipedia) Categorizing (del.icio.us, diigo)
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Privacy Some groups’ logs are archived to Web pages
Law enforcement can gather group correspondence from the hosting ISP Some groups are private, but none can guarantee complete privacy An anonymous r er is an account that safeguards your real identity
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Blogs Weblog - online equivalent of a diary or personal journal
Requires the use of a blog service provider like blogger.com or wordpress.com Service often packaged with membership in a social network More about Blogging:Technorati's State of the Blogosphere 2011 report.
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Social Networks
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Social Networks
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How old is the average Twitter or Facebook user?
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Social Networking & Age
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Some observations on age distribution:
Bebo appeals to a much younger audience than the other sites with 44% of its users being aged 17 or less. For MySpace, this number is also large; 33%. Classmates.com has the largest share of users being aged 65 or more, 8%, and 78% are 35 or older. 64% of Twitter’s users are aged 35 or older. 61% of Facebooks’s users are aged 35 or older.
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RSS “Live Bookmarks” A Web 2.0 server technology that allows users to “syndicate” their posted material Syndicated content is “polled” by an RSS client RSS clients display a time ordered list of publications featuring new or updated content Similar to a bookmark, except for the time ordering of the syndicated content RSS feeds are updated dynamically Top 15 Social Bookmarking Sites of 2012
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RSS
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RSS Acronym has various interpretations:
Really Simple Syndication Rich Site Summary RDF (Resource Description Framework) Site Summary First interpretation most commonly used Syndicated content can include any type of electronically recorded material Syndicated audio content originally known as a podcast
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RSS Viewing RSS content: Firefox includes an integrated RSS client
RSS clients (aka Aggregators) can be standalone applications (FeedReader) A browser feature or add-on Web site aggregator services (Google Reader or NewsGator Online) Add-ons to older browser or mail clients Firefox includes an integrated RSS client
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Podcasting Originally, an audio broadcast
(aka Webcast) on the Internet using streaming technology Streaming technology designed to view/listen to files (video/audio) as they are being transmitted These files can be recorded for later viewing Apple’s iPod/iTunes duo supports podcasts
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Wikis Wiki: server software that provides the capability to create and edit Web page content using any Web Browser Uses database technology to store organize, retrieve content on demand Web 2.0 philosophy is central - content is provided directly by the users Wiki staff primarily provides server support, not content
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Wikis User contribution of content both a strength and a weakness -
Any user can post Any user can edit Can assemble vast array of information rapidly But content verification also a user task Content is suspect Some users deliberately post malicious, erroneous content
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Wikis Some wiki sites now require user registration (wikipedia) Users may be blocked from contributing when violating rules
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Wikis Google Docs & Spreadsheets
Allows multiple users to work collaboratively on the same document All users must have a Google account Uses Web browser to access documents Other examples: wikibooks wikispecies wiktionary
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Discussion Groups Forum where people can share information with each other via the Internet Various forms exist: Message Board (aka Forum) Web-based Mailing List Usenet Mailing List
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Web-based Discussion Groups
A Web-based Discussion Group is a message board or a Web-based mailing list A message board (or forum) is a Web site where people can read, post, or reply to messages and track discussion threads Some message boards allow anyone to post messages Examples include: product review forums and topical discussion boards
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Mailing Lists A mailing list is a forum where people use messages to share information with each other A mailing list generally has a particular subject area that is discussed Mailing lists vary in size in terms of the number of subscribers Some mailing lists are private while others are open for anyone to join Communication is generally in plain text
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Mailing List Joining a mailing list = subscription
To subscribe, send an to automated list server software (aka listserv) Mailing lists have two delivery options Regular list subscription: each list posting is sent to you as a separate Digest subscription: a number of postings are collected and ed to you as one message
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Internet Relay Chat, Web-based Chat and Instant Messaging
Communication in real-time is also possible on the Internet
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