This site is using the standard WordPress Theme Unit Test Data for content. The Theme Unit Test is a series of posts and pages that match up with a checklist on the WordPress codex. You can use the data and checklist together to test your theme.
<h2>WordPress Theme Development Resources</h2>
<ol>
 	<li>See <a href="http://codex.wordpress.org/Theme_Development">Theme Development</a> for <a href="http://codex.wordpress.org/Theme_Development#Code_Standards">code standards</a>, examples of best practices, and <a href="http://codex.wordpress.org/Theme_Development#Resources_and_References">resources for Theme development</a>.</li>
 	<li>See <a href="http://codex.wordpress.org/Theme_Unit_Test">Theme Unit Test</a> for a robust test suite for your Theme and get the latest version of the test data you see here.</li>
 	<li>See <a href="http://codex.wordpress.org/Theme_Review">Theme Review</a> for a guide to submitting your Theme to the <a href="http://wordpress.org/extend/themes/">Themes Directory</a>.</li>
</ol>