title: Preferred approach for marking up a blog with Schema.org
body: <h2>Background/context</h2>
  
  <p>As schema.org is relatively new, perhaps this question will promote more discussion than a definitive answer. Either way, hopefully some learning from others' application/experience can be gained.</p>
  
  <p>Having studied the <a href="http://schema.org" rel="noreferrer">http://schema.org</a> documentation pages – and whilst there seems to be an extensive array of properties (read: <code>itemprop</code> attributes) available to enrich a blog post, there seems to be some inconsistencies and 'grey areas' with regard to the best approach to mark up blog comments. Let me provide an example:</p>
  
  <p>The schema.org documentation for blogs can be found on within <a href="http://schema.org/Blog" rel="noreferrer">Thing > CreativeWork > Blog</a> and for reference, a blog post lives within <a href="http://schema.org/BlogPosting" rel="noreferrer">Thing > CreativeWork > Article > BlogPosting</a></p>
  
  <p>So far, the documentation and markup examples on the aforementioned pages provide enough reference to format a blog index page, and the bulk of content within an individual post  (<code>author</code>, <code>pubDate</code>, <code>articleBody</code>, <code>interactionCount</code>, etc.)</p>
  
  <h2>The problem: applying the UserInteraction schema to individual blog comments</h2>
  
  <p>It is when we start to look at individual UserInteraction elements (blog comments) within the <code>interactionCount</code> that things get a little vague. The documentation leads us through to <a href="http://schema.org/UserComments" rel="noreferrer">Thing > Event > UserInteraction > UserComments</a>, and is described as <em>'User interaction: A comment about an item.'</em> However all of the suggested properties of <code>UserInteraction</code> are geared towards a physical event.</p>
  
  <p>The only property that appears to be relevant to a blog comment in this schema's documentation is <code>description</code>; which <em>could</em> be used for the comment body. What feels lacking is some specific context for user comments about a blog post. There's also no evidence of example markup for said comments, even a <a href="http://schema.org/docs/search_results.html#q=comment" rel="noreferrer">search for 'comments' on the site</a> doesn't seem to yield any clarity. </p>
  
  <p>Has anyone marked up their blog using schema.org – and how did you approach/solve this?</p>
  
  <p>I'll also raise this matter via the schema.org feedback form and update this post if anything comes to light.</p>