The new schema.org by Google, Yahoo and MS recommends usage of the <link> attribute to display the status of products in an online shop:
<div itemscope itemtype="http://schema.org/Offer">
<span itemprop="name">Blend-O-Matic</span>
<span itemprop="price">$19.95</span>
<link itemprop="availability" href="http://schema.org/InStock"/>Available today!
</div>
Yet, according to w3schools.org <link> is only allowed in head sections:
Note: This element goes only in the head section, but it can appear any number of times.
I am not used to W3C style, so I was not able to understand the exact definition by W3C. Can anybody help me: Is it really allowed to use <link> within the body (in HTML5, as schema.org uses HTML5 tags) or do Google, Yahoo and MS break the standard?
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