A few nice image post images I found:
Anatomy of a "Rich" Blog Post
Image by robinhamman
A post on NoodlePie that very clearly demonstrates how a post can be written in such a way as to give a quick hit of content for those who want one, but where the links provided add a wealth of richness for those with time to browse or a deeper interest in the subject.
The post is at www.noodlepie.com/2006/07/freak_fish.html