With a bit of extra markup, you can use media inside list (useful for comment threads or articles lists).
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nobis assumenda similique cupiditate sit incidunt culpa minima. Cumque dolores at ipsum ex possimus animi? Quasi consectetur voluptates modi perferendis ullam eligendi!
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nobis assumenda similique cupiditate sit incidunt culpa minima. Cumque dolores at ipsum ex possimus animi? Quasi consectetur voluptates modi perferendis ullam eligendi!
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nobis assumenda similique cupiditate sit incidunt culpa minima. Cumque dolores at ipsum ex possimus animi? Quasi consectetur voluptates modi perferendis ullam eligendi!
Lorem ipsum dolor sit amet, consectetur adipisicing elit. Nobis assumenda similique cupiditate sit incidunt culpa minima. Cumque dolores at ipsum ex possimus animi? Quasi consectetur voluptates modi perferendis ullam eligendi!
<ul class="media-list">
<li class="media">
<a href="#" class="pull-left">
<img class="media-object" src="..." alt="...">
</a>
<div class="media-body">
<h4 class="media-heading">Media Heading</h4>
...
</div>
</li>
</ul>