e1a3a9e2_eb_Design_Blog_Web_Design_Blog__Example_
[Type:] Network [Important:] Very important here is to think about how you group and link things, it’s very easy to lead the visitor into a dead-end page with no back link. [Example:] 
A network structure is very special, it’s not flat, and it’s not hierarchical. All the pages are grouped and linked to another only based on the site owners whishes. Every network structure is different, thus very hard to exemplify or explain to a visitor.
What's behind the great designs? - Web Design Blog Web Design Blog
Example: