OPML 2.0 Draft Spec revealed

Dave Winer has revealed the draft of the OPML 2.0 specification. Woo!

I’ve had a quick read and most of it makes sense. But I have a comment to make on something that bugs me, as a developer of OPML-powered products. I’ll eat my dinner, then drink a coffee and post it on the Yahoo! Group which has been set up to manage the feedback to all this.

First impression though, is that I’m glad to see the ‘include’ type attribute.

I have a comment about the usage of the ‘link’ attribute, which may or may not be linking to an OPML file for inclusion or it may be a link to a website. Checking for .opml is a bit of a pain, when many people use php or whatever to generate their OPML. But I suppose it should be backward compatible with 1.0 for all those opml files out there which use ‘link’ to point to both web links and opml inclusion links. This new spec should get some good traction. I’ll support it. But I personally think ‘include’ should link to opml formatted files only and link should always be a link to a site. Maybe through extending OPML we can provide type flags for links to mp3 files, or video files or software updates, then build clients around this to consume that ‘opml enclosure’ of sorts.

More thoughts later…. meanwhile, have some icons

6 Responses to “OPML 2.0 Draft Spec revealed”


  1. 1 markr March 1, 2006 at 11:10 pm

    i thought the generation of code was done in OPML and not in PHP. I am the first to admit that I am a newbie with OPML and am thrilled that I got it working with the wordpress root to give you an idea of where I am at.

    Since I live about 1/2 an hour from Dave, I need to go some meetings that Dave sets up in Berkeley. I would be interested in more posts from you

  2. 2 kosso March 1, 2006 at 11:16 pm

    I meant that people use scripts to generate xml formats. EG: php is mostly used to output HTML. It has .php at the end of the url, but it’s still ‘HTML’

    That’s why some opml reader developers have to ‘klooge’ a script generated opml file by appending ‘?.opml’ on the end (or ‘&.opml’, if you already have a query added to the url)

    more thoughts soon šŸ˜‰

    I’m very excited about this release and that we catch issues right now.

  3. 3 Ed March 2, 2006 at 12:11 am

    treedia.com has become podcast.com?

  4. 4 kosso March 2, 2006 at 12:34 am

    treedia is the codename and testbed for the system that will power podcast.com – there I said it šŸ˜‰

    things will be going up a gear from monday

    blogs, podcasts, feedback and conversations aplenty!

    šŸ˜€

  5. 5 kosso March 2, 2006 at 1:10 am

    oh and trees! lots of trees!

    opml = trees
    rss = vines
    items/enclosures = fruit
    tags+ratings = roots

    a semantic tree of multimedia

  6. 6 Ed March 2, 2006 at 7:45 am

    I noticed the trees at Treedia šŸ™‚


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Who is this ‘kosso’ anyway?

I am a 'Createc'. A creative technologist, entrepreneur/ hacker/ geek. Worked on building things on the web for over 12 years.

Used to work at BBC News interactive and created the publishing and delivery systems for video news to get distributed on huge screens in major railway stations around the country.

I left the BBC to become CTO / sole-lead architect/developer at podcast.com for three years.

I have now left them to build a start up a new system called 'Phreadz', which is a 'Social Multimedia Conversation Network', integrating everything that is 'V.I.T.A.L' to us on the web. Video, Images, Text, Audio and Links.

I built the whole thing my myself. I programmed every line of code and positioned every pixel. I'm looking forward to attracting an hiring new members of the team to help me out! :)

There are currently over 1000 happy and helpful beta testers on the system so far and one client of a white-labelled solution.



@kosso : twitter

kosso's flickr stream

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