Everything else: blogs, RSS feeds, wikis, and podcasts Computer Science 110 Fall 2005

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Transcript of Everything else: blogs, RSS feeds, wikis, and podcasts Computer Science 110 Fall 2005

  • Everything else: blogs, RSS feeds, wikis, and podcastsComputer Science 110Fall 2005

  • Blogs: The elements (optional)Post Date - date:time the post was published Category - category the post is labeled with (can be one or more) Title - main title of the post Body - main content of the post Trackback - links back from other sites Comments - comments added by readers Permalink - the URL of the full, individual article Footer - usually at the bottom of the post, often showing post date/time, author, category, and stats such as number of comments or trackbacks.- from Wikipedia, http://en.wikipedia.org/wiki/Blogs

  • Elements in actiontitlebodytrackbackfootercategoryPost date

  • How a blog works using LAMPClientWeb Server (Apache)6.Sends web pageDatabase (MySQL)Code (PHP)3.Gets records2.Runs code4.Organizes records5.Creates HTML1.Request web page

  • A blog we can edit

  • RSS feeds: widely used XML applicationThis stands for:RDF Site Summary (where RDF stands for Resource Description Framework)

    Rich Site Summary

    Really Simple Syndication

  • How RSS feeds work

  • in a RSS feed

  • Example of an

  • Adding a RSS feed to your blog

  • Adding rss for a blog to your reader

  • subscribe

  • Link is on the left column

  • Another option is from a site

  • Wiki1.Anybody can edit the pages of the wiki, and anybody can undo these edits2.It is easy to write new pages for the wiki, because it doesn't use HTML- http://www.oddmuse.org/cgi-bin/wiki/What_Is_A_Wiki

  • How a Wiki works using LAMPClientWeb Server (Apache)6.Sends web pageDatabase (MySQL)Code (PHP)3.Gets records2.Runs code4.Organizes records5.Creates HTML1.Request web page

  • Wait a secondANYONE can edit a wiki? Yup.In Wikipedia when there are problems.

  • PodcastsSyndicating audio content, prompting some folks to compare it to an audio version of a blogUses RSS feeds, but it puts an audio component in the field

  • Intellectual Property rights and copyrightConstitution, Article 1, Section 8The Congress shall have powerto provide for the general welfare of the United States To promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries;(emphasis added)

  • What has copyright become?Licensing is replacing copyright in the digital ageMoving long standing common law or constitutional rights into the arena of person to person business transactions, where these rights no longer apply. Examples, international arena, increasing time before work enters the public domainFair use is disappearing

  • Public domain: Why should we care?Whats part of Public Domain?Still isWasAirWaterSunlightLandNumbersGodIdeas & Facts*Resources freely available, without permissions or fees needed, and no tracking of what you read or use - all for society to do what they want with them.

  • Importance of Public DomainCommon Heritage (philosophical)New Knowledge incorporates Old (progress)Derivitative works rely on pre-existing works (creativity)Social Commentary (free speech)

  • Lengthier Copyright Means:http://www.copyright.cornell.edu/training/Hirtle_Public_Domain.htm

    Or

    http://www.gseis.ucla.edu/~howard/Papers/pw-public-spaces.html

  • What this meansDismantlement of the public sphere in general - controlling social/political commentary & satire.Criminalizing acts that might impede digital commerce.Controlling access to older information (our history).Makes the Internet a commercial venture, not for production of ideas.Diminishment of exploration & experimentation.Challenges Democratic values (that anyone can be a creator)

  • How to find them

  • To listen, just double click

  • How to make a podcast:First you'll need to use software to record your own audio file. Youll also need something which allows MP3 exportation.Once your audio is recorded you'll need to create an RSS feed file. 4) Once your audio and RSS files are completed you'll need to upload both of them to your server/website.

  • Equipment you can use to make one

  • This is what a professional podcast site looks like

  • Once you have a file, upload to iTunes

  • File sharing What is it?How is it useful?Examples?

    This is a web based diary.

    The term "weblog" was coined by Jorn Barger on 17 December 1997. The shorter version, "blog," was coined by Peter Merholz, who, in April or May of 1999, broke the word weblog into the phrase "we blog" in the sidebar of his weblog

    I like to think of it as a diary that happens to be online. It is not very easy to search, like your diary with the lock and key werent. You can read from start to finish, but short of flipping the pages, you cant get to what you want very accurately.

    Many of them have these elements in themHere is what all of those elements might look like:Here is a very popular individuals blog, not a corporate one. According to Technorati, which ranks blogs based on ''net attention,'' or the number of people who are linking to them, Ms. Klein's blog has a rank of 2,132, meaning that of the world's more than 13 million blogs, there are only 2,000 or so with more inbound links than hers. ''That would put her in the top 1 percent of all bloggers,'' said David L. Sifry, the founder and chief executive officer of Technorati. (The top 100-ranked blogs tend to offer news and political commentary; single-subject or niche blogs like Ms. Klein's, even the most popular, are generally further down the list.)

    If we applied all those elements from the wikipedia article, Id guess the following.Post Date - date:time the post was published Category - category the post is labeled with (can be one or more) Title - main title of the post Body - main content of the post Trackback - links back from other sites **important**Comments - comments added by readers Permalink - the URL of the full, individual article **important**Footer - usually at the bottom of the post, often showing post date/time, author, category, and stats such as number of comments or trackbacks.LinuxApacheMySQLPHPAll robust open source products-Diagram by Peter VerreyThis is one we could editHow many folks have a blog? How many folks have seen one being edited?

    How to edit it on blogger,,,,if theres time/interestGo to my blog

    Now, if theres a blog that you like, and sometimes the person posts 3 entries one day and then not another one for weeks. You, the loyal reader, check every day for some new pearls of wisdom. What if there was a way that you could be notified, on your phone, by email or by checking a single web page of just whats new on your favorite sites?

    Here are the different symbols used to indicate that an RSS feed is available for the site. These symbols are a whole other discussion themselves. Why is this such a popular application? What are other applications?i.e. buying cars, EAD encoding for primary resources (UVA had a copy of the Declaration of Indep, Montecello has a bunch of letters written at that time, the Philadelphia library has other materials, how will you find it all?)

    How do you use these things? this creates a mini-database that allows for the gathering and distribution of news. You can go one of two ways with this application, either

    a) allow you to see what's new on a site that you monitor for news and informationi.e. New York Times headlines, your favorite blog, the MySpace promoter who'se parties you like going to, books you want to read in your library, podcasts, images: flicker,anything that updates regularly.

    b)allows folks who are reading your site/blog/regularly updated internet based thing to monitor what is new with you. The economic implications for this should be obvious, as it can increase traffic to a site, without expecting someone to actually come to your site every day.

    You can "drive traffic by letting others know what you are doing. The difference is now we can notify others not just of a new site, but of new stories -- new activity on our site"- O'Reilly Network's President and CEO Dale DoughertyHow these work is based on Extensible markup language, there is lots of documentation about what is needed and whats optional here is one such page:http://blogs.law.harvard.edu/tech/rss#requiredChannelElements

    Need the title and a link, the description is optional

    You can then make an RSS feed for something like your blogThis was generated by an automatic RSS generator.here is the title, link and description tag

    A channel can contain any number of items MUST have either a title or a descriptionnothing else is mandatoryHere is an item recordWith a title, link and description tooYou can just add a bookmark for this or you can use a readerAdding a RSS feed to your blog can be as easy as thisIn blogger, log in, got to settings > sit feed

    3rd party software does this as wellCan program it as well (ask corey about this?)

    READING other RSS feeds is usually done by setting up a RSS reader. There are lots of them.Here is one, Bloglines, which I like because it is a web based RSS reader, instead of being platform specific.Allows you to look at just what is new on a particular site. Here is an example of a search at a library with an RSS feed. The search is for books in computer science.

    Lets add the RSS feed we just created from our blogAdding a new RSS feed is easy.Go to Add and then find a feed you want to see and copy it into the search boxMore commonly, when youre on a favorite/fabulous web site, use the XML, RSS button to add to your Reader.Select sub bloglines - For Daily show videoCl