Marking up a list of articles: Unordered list or definition list

[champ]

Which do you think is most appropriate?

With H2 headers in list items:

<h1>Electronics Articles</h1>
<ul>
    <li>
        <h2>Article Title 1</h2>
        <p>Posted June 1, 2009</p>
    </li>
    <li>
        <h2>Article Title 2</h2>
        <p>Posted June 1, 2009</p>
    </li>
</ul>

No H2 headers in list items:

<h1>Electronics Articles</h1>
<ul>
    <li>
        Article Title 1
        <span>Posted June 1, 2009</span>
    </li>
    <li>
        Article Title 2
        <span>Posted June 1, 2009</span>
    </li>
</ul>

As a defintion list:

<h1>Electronics Articles</h1>
<dl>
    <dt>Article Title 1</dt>
    <dd>Posted June 1, 2009</dd>
    
    <dt>Article Title 2</dt>
    <dd>Posted June 1, 2009</dd>
</dl>

[Dan Schulz]

I'd probably go with the definition list.

[oddz]

first and last split.

If the design requires a wrapping element for the term and definition pair you'll probably end with something more like this.

<dl>
    <dt>Article Title 1</dt>
    <dd>Posted June 1, 2009</dd>
</dl>
<dl>    
    <dt>Article Title 2</dt>
    <dd>Posted June 1, 2009</dd>
</dl>

Which in my opinion sucks, so I rather use the first.

if the below were possible though I would be all for the definition list.

<dl>
    <di>
         <dt>Article Title 1</dt>
         <dd>Posted June 1, 2009</dd>
    </di>
    <di>   
        <dt>Article Title 2</dt>
        <dd>Posted June 1, 2009</dd>
    </di>
</dl>

personal preference of course.

[champ]

First because it supports the use of a heading. Although, I wouldn't hold it against you for using the first or last.

Would you still say 1 even if the only content following the heading was that single date blurb? Also, would the heading still make sense even without any additional content following it, such as the date blurb.

[oddz]

yeah I changed my mind as you'll see.

[champ]

Dan Schulz and oddz, thanks for the helpful input. I'm now further along than I was.

[cooper.semantics]

Before using a definition list, you should be aware that it may not be the best option in every case.

The <dt> within definition lists cannot contain block level elements – particularly the <hn> element. If content within a <dt> cannot be flagged as a heading, it cannot be given “heading” importance within the document hierarchy. Also, Google and other search engines will not index definition list content in the same way that they do for heading-based content.

I would stick to an unordered list in your situation...