( Conversation started here, with @murtaugh and @zeldman. )
Ah man, I got Opinions™ on this. I ususally go with something like:
<aside>
<h1>Optional Heading</h1>
<blockquote>
<p>It is the unofficial force—the Baker Street irregulars.</p>
</blockquote>
<address>Sherlock Holmes</address>
<cite>Sign of Four</cite>
</aside>
aside
provides sectioning context, address
flags the author/owner of the current sectioning context, cite
to cite a “work”, and blockquote
because it’s… a blockquote. I’d probably bolt the emdash onto the front of the address
with address:before { content: "—"; }
, where it’s not really essential. This is all predicated on the pullquote being considered non-essential to the surrounding content.
The figure
route could work too, but technically figure doesn’t provide sectioning context, so there’s two ways you could go with this.
<aside || section>
<figure>
<blockquote>
<p>It is the unofficial force—the Baker Street irregulars.</p>
</blockquote>
<figcaption>
<address>Sherlock Holmes</address>
<cite>Sign of Four</cite>
</figcaption>
</figure>
</aside || /section>
aside
if complementary but inessential to the surrounding content (like a pull-quote directly from the article), section
if part to the surrounding content (an external quote directly referenced by the text).
That’s an awful lot of stuff, though, so the other way of doing it with figure:
<figure>
<blockquote>
<p>It is the unofficial force—the Baker Street irregulars.</p>
</blockquote>
<figcaption>
<p>Sherlock Holmes</p>
<p>Sign of Four</p>
</figcaption>
</figure>
The figcaption
flags the content as metadata for the rest of the figure, but you lose the specifics: “author” and “work” just become generic metadata.
I’m partial to the first one from an HTML5 outline standpoint.
I went through this semantic exercise independently just a few days ago and arrived at this markup pattern:
Article seems most appropriate for use as a wrapper... and nesting articles establishes a semantic relationship between the two, insofar as I understand it. Figure does not seem appropriate to me given that the contents can be removed from the flow of a document without affecting its meaning. Usually that isn't the case with quoted passages. Footer is a good match for metadata... and I err on the side of caution in using cite in a way that conforms to the working draft of the HTML5 specification.
I'm a bit new at this but figured that I may as well link my work here since I didn't see this specific pattern mentioned in the discussion above :)