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<div>Actually the same as last post, except now it mostly works. This
blog was down (silly mistake by me, fixed by Reto - thanks!) so I
dumped everything on the ESW Wiki : 
<a href="http://esw.w3.org/topic/SparqlTimeline">SparqlTimeline</a>.
It's not live, but could easily be. 
<a href="http://esw.w3.org/topic/SparqlTimeline?action=AttachFile&do=get&target=screenshot_2006-07-09.png">Screenshot</a>,

<a href="http://esw.w3.org/topic/SparqlTimeline?action=AttachFile&do=get&target=sparql2timeline2_2006-07-09.png">screenshot</a>.
The code won't run from local fs (some of the stuff is loaded
via url), and I'd forgotten about escap'ng apostrophes for JSON
(bah, lost the link - think the search & replace I've used was
one of Bob DuCharme's).
Although here I was just using blog data offline, what's cool is
that *any* data containing a date (why does it even have to be a
date?) can be used with minor tweaks, and there's no reason why the
data shouldn't come from a live source. (To have it continuously
updating as you scroll will need a little Ajax magic, but I'm sure
that would be doable).
 
 Aside from play, the reason I was trying this was I needed to
add some cool points to a microformats demo for 
<a href="http://web2.0thebook.org/">Web 2.0 the Book</a>. I
personally think SPARQL is ideal for Web 2.0 apps (and I'm 
<a href="http://www.google.com/search?q=sparql+web+2.0">not the
only one</a>). But the microformats demo I was working on hit a
snag - half the magic of GRDDL relies on source data such as
microformat XHTML, being XML and for there to be a profile URI in
the HTML. Hardly any live microformat stuff fulfils those. Sure,
both fairly easy to work around, but when the slick demo code
starts filling with nasty hacks, something has to go. Under other
circumstances I might have just made up some artificial data that
worked. But that just didn't seem right for microformats/Web
2.0.
So reluctantly I decided to drop the multi-microformat mashup
coolness. I couldn't actually find any good data which includes
common entities across docs anyhow, e.g. this 
<a href="http://www.policyawareweb.org/2005/ftf2/paw-mtg">PAW
Meeting</a> is marked up with hCalendar, but how does that connect
to the hCards of the participants?
So I decided to fill the mashup hole with cool visualization:
hCalendars -> GRDDL -> store -> SPARQL -> Timeline.
Â @en
</div>