This section is quite small at the moment as it is quite new. Hopefully more people want to share their work or offer them for a price.
The first site export we have added is of course the export of the InfoGlue.org-site. In contains the entire site including components, structure and contents. It is a very good template to start from when building a new site.
Download the xml-export here and look at the user manual for how to install it in your own installation.