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Monday, June 03, 2002 |
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Weblog neighborhoods
Excellent! Radio can now harvest channelroll data:
If a site's name appears in bold that means it has a link in its head that points to a subscriptions file and we were able to read it and harvest from it. It's a very cool thing to be so bold, because you're contributing information to people whose neighborhood you're part of. [radio.userland.com]
Social network analysts: have at it!
5:39:21 PM 
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Google does catalogs! Jeffrey P Shell writes:
Google Catalog Search - try it, then sit and go "how the hell did they do that?" Search results show scanned images of the catalog, with the search terms hilighted. And it's fast. Amazingly fast. Nicely, this shows up in time for me to search for something obscure - like a 5Volt 3Amp power adapter. [Industrie Toulouse]
Wow.
4:57:17 PM
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Auto-discovery of mySubscriptions.opml
Things are really moving along! I just spoke with Dave Winer. It turns out that, by enabling uploading of mySubscriptions.opml, there already is a canonical XML representation of my feeds, suitable for harvesting. This is unrelated to radio.macros.blogroll, it turns out.
Further, as a result of the new updates, a second headlink appears that refers to mySubscriptions.opml. View source on my homepage to see this. Very cool!
In fact, the limited general visualization I sketched last week could already have been done much more completely, even without this recent improvement. I had simply forgotten about the existence and purpose of mySubscriptions.opml -- and had, in fact, disabled mine for reasons that became obselete once I turned on my channelroll.
The auto-discovery feature will make things even smoother. Still to be sorted out: how will non-Radio sites represent their feed lists? DJ's idea would be fine; OPML would be fine; I don't much care. Either can be easily transformed into the other if need be.
1:04:19 PM
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Ugo Cei: I actually have two RSS feeds, one is RSS 0.92, the other one is RSS 1.0. Thus I've put up two links... Will this work? Enquiring mind wants to know. [via Sam Ruby]
Ugo, here is what I observe. My bookmarklet tries the second of the two. If that's the one you favor, then placing it second is what you'd want. However, because the URL is not fully qualified, it doesn't work as an argument to the JS location in the bookmarket. So, might want to fully qualify it.
11:28:12 AM
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RSS auto-discovery and meta-linking, continued
Things are moving very quickly in weblog social networking infrastructure! Let me see if I've got the story straight, vis a vis Radio:
- I'm using <%radio.macros.headLinks ()%>, as per Dave's Links for Blogroll, RSS and Subscriptions
- It generates the RSS discovery link in the homepage
- Which Mark Pilgrim's bookmarklets for Radio and AmphetaDesk can use
- Was the idea also that Radio's aggregator was updated to accept the homepage URL of a site that contains the headlink, and find the RSS feed through it? If so this doesn't seem to be happening, though it's not something I need or care about.
- If I were using OPML to manually maintain a blogroll, and were referring to it with radio.macros.blogroll, then a second headlink would point there.
- However, I'm using my channelroll script to automatically surface my reading list.
- One option would be to surface it is an RSS feed, a la DJ's meta link
- Another would be to have the channelroll script write a blogroll.opml, and then use radio.macros.blogroll to render it.
- Opinions?
11:20:32 AM
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RSS auto-discovery and meta-linking
I've implemented Mark Pilgrim's final version of the RSS auto-discovery technique, inspired by Matt Griffith's proposal. A small change in Mark's Radio bookmarklet seemed to be needed, from indexOf(application/rss+xml') to indexOf('application/rss+xml'), in order to be able to subscribe in Radio to sites using this technique.
Mark writes:
It has been surprisingly painless and friction-free. Together, we have come up with a new standard that is useful, elegant, forward-thinking, and widely implemented. In 4 days.
Amen!
DJ's meta-link is a great idea too. An excellent way to facilitate the kinds of social network analysis that we're all buzzing about lately.
1:55:03 AM
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© Copyright 2002 Jon Udell.
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