Content filters are ridiculously easy to implement though. As long as you already have the browsing view, all you need to add is a picker that changes whatever DB query you are using to select the data.<p>Like in SQL all you would need to do is change this:<p><pre><code>  SELECT * FROM movies
</code></pre>
to this:<p><pre><code>  SELECT * FROM movies ORDER BY rating ASC
</code></pre>
When I built a web app for film management, that was by far the easiest thing to implement.