Sorry about that, I've solved my blog post problem, here's the answer:
<r:find url="/blog/">
<r:children:each order="DESC" limit="2">
<r:if_tagged with="hotels" />
<div class="blog-post">
<h3><r:link /></h3>
<span> - <r:date /></span>
</div>
</r:if_tagged />
</r:children:each>
</r:find>
