Здрасти,
най-добра референция може да получиш в
w3.org, където е описан стандарта. Та четейки от там:
Examples of sections would be chapters, the various tabbed pages in a tabbed dialog box, or the numbered sections of a thesis. A Web site's home page could be split into sections for an introduction, news items, and contact information.
The article element represents a complete, or self-contained, composition in a document, page, application, or site and that is, in principle, independently distributable or reusable, e.g. in syndication. This could be a forum post, a magazine or newspaper article, a blog entry, a user-submitted comment, an interactive widget or gadget, or any other independent item of content.
Или с две думи на майчин език, article тагът е за цялостно съдържание (страница, документ, приложение, т.н.), докато section служи за обозначване на отделните логически части в една страница.
Примерите са пак от w3.org:
<article itemscope itemtype="http://schema.org/BlogPosting"> <h1 itemprop="headline">The Very First Rule of Life
</h1> <p><time itemprop="datePublished" datetime="2009-10-09">3 days ago
</time></p> <link itemprop="url" href="?comments=0"> <p>If there's a microphone anywhere near you, assume it's hot and
sending whatever you're saying to the world. Seriously.
</p> <article itemprop="comment" itemscope itemtype="http://schema.org/UserComments" id="c1"> <link itemprop="url" href="#c1"> <p>Posted by:
<span itemprop="creator" itemscope itemtype="http://schema.org/Person"> <span itemprop="name">George Washington
</span> <p><time itemprop="commentTime" datetime="2009-10-10">15 minutes ago
</time></p> <p>Yeah! Especially when talking about your lobbyist friends!
</p> <article itemprop="comment" itemscope itemtype="http://schema.org/UserComments" id="c2"> <link itemprop="url" href="#c2"> <p>Posted by:
<span itemprop="creator" itemscope itemtype="http://schema.org/Person"> <span itemprop="name">George Hammond
</span> <p><time itemprop="commentTime" datetime="2009-10-10">5 minutes ago
</time></p> <p>Hey, you have the same first name as me.
</p>