Reading List URIs

Update: Due to a misconfiguration some of my blog entries from the month of Feburary recently lost. This is merely a repost of the original content.

Danny Ayers has been going on about grazing the web
lately. I think he is on to something with this meme. Managing a set of
subscriptions is hard work if you don’t want to be overwhelmedI know because I am failing miserably at keeping my subscriptions to a manageable number. and I might be willing to delegate that to someone, or several someones, that I trust. Recently, Mr. Ayers decided to use del.icio.us to create/manage a technical reading listI do not use del.icio.us much but I never cease to be amazed at how other people put that system to good use..

Sounds pretty good so far. Well except that FeedLounge does not support reading lists, but I assume that is only a matter of time before this is rectified. And then I read this:

So I’ll find a few feeds (the feeds, not the blogs) and tag them ‘readinglist’.

My heart falls. I hate this. The fact that the feed and HTML
versions of most blogs have different URIs has got to be one of the vilest kludgesI think this kludge came about because a) most developer have yet to
internalize RESTful architecture and b) most web application frameworks
are exceedingly bad at content negotiation. As a practical matter it is
probably not as bad as I make it sound, but it just so dumb that it can
hardly be borne.

to ever exist. It should not, under any circumstances, be encouraged.
In almost all cases, a feed is just another representation of the blog.
Therefore, the HTML and feed versions of the blog should have the same URI. It is rare, today, to find a blog in which then HTML, RSS and Atom representations share the same URIEven
my blog has a separate URI for each representation. This has bugged me
for a long time but I have yet to find the time to fix it.

but that does not mean that we should give in. New system, like reading
lists, should strive to be better than the systems that came before. We
can start by not muddling our documents with the bad design decisions
of the past, especially when there is an easy alternative.

Reading lists should point at the resource of interest,
namely main human readable page of the blog. Aggregators can, and
should, deal with blog software that does not handle content
negotiation correctly by requesting the resource with an accept header
that looks like application/atom+xml;q=1, application/rss+xml;q=0.9, text/xhtml+xml;q=0.2, text/html;q=0.1.
If an html document is returned the aggregator should use the
“auto-discovery” kludge to work around that particular blogging
software’s damage. Someday the world will be RESTful and we don’t need
a bunch of broken interchange formats, like reading lists that point as
ugly feed URIs, holding us back.