...about how to be able to offer to your visitors in your site in a gratuitous way, the content that appears here to the right; which is often renovated, and that will be able to be compound with the help of text, of images, or of both jointly.

You only have to copy and to paste the following Code piece on your page, where you want that this content appears.
Have present that the frame in which is included, is of: 460(W) x 360(H) px. However also you can adjust these dimensions to your best convenience, simply changing the two respective measures in this code.

<iframe src="http://www.jmgiralt.com/syndication/content_2.html" width="460" height="360" frameborder="0" scrolling="yes"></iframe>
<i><b>Content</b> courtesy of <a href="http://www.jmgiralt.com" target="_blank">JMGiralt.com</a></i>

The only requirement for my part, is that it is always suitable the creative origin of this content. Thank you!