IMHO - The quotes module is one of the most underutilized modules in Scott's arsenal of great products.
We have also used it for testimonials (http://www.jivemg.com/Services/WebSolutions/WebsiteDesign.aspx), promoting random featured articles, and the latest use is to show daily YouTube videos.
If I may take a moment to expound on the later. YouTube not only allows you to grab the code to show a video on your site - they promote it. How cool! Search for videos that are relevant to your site content, place them on your site, and use their bandwidth. When we produce how to videos, we upload them to YouTube and then pull them down using this method. It sure saves on our hosted resources at WebSecureStores. The video object and embed parameteres can also be adjusted to size to your page needs.
Yahoo Video also offers this option.
Here is a live example:
We are currently using this feature on:
Refreshing these pages will produce another video. We set these daily videos, using the quotes module, to seven videos at a time (a weeks worth).
The one enhancement, that I would like to see on the quotes module, is an optional paging system. If we could add a previous and next button to the quotes module, it would be perfect.