Lots of blogs

Multiple blogs are present in the MODx web site.

I suppose each blog is a folder (using newslisting) containing the entries. Also, I suppose that all blog folders are placed into another unique folder, where entries of all blogs are shown. What is it used into that folder in order to avoid a newslisting of other newslistings (which multiplies entries)?

Take a look at this article I wrote right when we released the blog:

http://modxcms.com/Designing-the-MODx-Weblog.html