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+# Cool URLs Do Change (Sometimes)
+
+Required reading: [Cool URLs don't
+change](http://www.w3.org/Provider/Style/URI.html).
+
+When I wrote [Nobody Cares About Your
+Build](http://codex.grimoire.ca/2008/09/24/nobody-cares-about-your-build/), I
+set up a dedicated publishing platform - Wordpress, as it happens - to host
+it, and as part of that process I put some real thought into the choice of
+"permalink" schemes to use. I opted to use a "dated" scheme, baking the
+publication date of each article into its name - into its URL - for all
+eternity. I'm a big believer in the idea that a URL should be a long-term name
+for the appropriate bit of data or content, and every part of a dated scheme
+"made sense" at the time.
+
+This turned out to be a mistake.
+
+The web is not, much, like print media. Something published may be amended;
+you don't even have to publish errata or a correction, since you can correct
+the original mistake "seamlessly". This has its good and its
+[bad](http://en.wikipedia.org/wiki/Memory_hole) parts, but with judicious use
+and a public history, amendment is more of a win than a loss. However, this
+plays havoc with the idea of a "publication" date, even for data that takes
+the form of an article: is the publication date the date it was first made
+public, the date of its most recent edit, or some other date?
+
+Because the name - the URL - of an article was set when I first published it,
+the date in the name had to be its initial publication date. _This has
+actually stopped me from making useful amendments to old articles_ because the
+effort of writing a full, free-standing followup article is more than I'm
+willing to commit to. Had I left the date out of the URLs, I'd feel more free
+to judiciously amend articles in place and include, in the content, a short
+amendment summary.
+
+The W3C's informal suggestions on the subject state that "After the creation
+date, putting any information in the name is asking for trouble one way or
+another." I'm starting to believe that this doesn't go far enough: _every_
+part of a URL must have some semantic justification for being there, dates
+included:
+
+1. *Each part must be meaningful*. While
+    `http://example.com/WW91IGp1c3QgbG9zdCB0aGUgZ2FtZQ==` is fairly easy to
+    render stable, the meaningless blob renders the name immemorable.
+
+2. *Each part must be stable*. This is where I screwed up worst: I did not
+    anticipate that the "date" of an article could be a fluid thing. It's
+    tempting to privilege the first date, and it's not an unreasonable
+    solution, but it didn't fit how I wanted to address the contents of
+    articles.
+
+Running a web server gives you one namespace to play with. Use it wisely.
+
+## Ok, But I've Already Got These URLs
+
+Thankfully, there's a way out - for _some_ URLs. URLs inherently name
+resources _accessed using some protocol_, and some protocols provide support
+for resources that are, themselves, references to other URLs. HTTP is a good
+example, providing a fairly rich set of responses that all, fundamentally,
+tell a client to check a second URL for the content relevent to a given URL.
+In protocols like this, you can easily replace the content of a URL with a
+reference to its new, "better" URL rather than abandoning it entirely.
+
+Names can evolve organically as the humans that issue them grow a better
+understanding of the problem, and don't always have to be locked in stone from
+the moment they're first used.
diff --git a/wiki/packaging-ideas.md b/wiki/packaging-ideas.md
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+# Why "Web 2.0" Matters
+
+It's not about Web 2.0. It's about every stupid industry buzzword that's ever
+made programmers roll their eyes.
+
+## Packaging ideas
+
+"Web 2.0" gives people who don't live and breathe technology a handy hook to
+group ideas on.
+
+* New, unfamiliar ideas
+* Ideas people already have but haven't articulated.
+
+## Unpackaging ideas
+
+A well-packaged idea has to do two things:
+
+1. Get the idea into someone's head.
+2. Let someone "unpackage" the idea in their own context and think new things
+    about it.