The Blog Tree is growing on me.  A project collaboration between JESS3 and Eloqua, it uses the tree metaphor to map out the post prominent Marketing blogs by traffic size and category.

The Blog Tree maps out the marketing blog structure from the most prominent blogs at the roots through the leaves which are shown in different colors to indicate the size of each blog’s readership. The positioning and color of the blogs were determined using publicly-available visitor data about each web site on compete.com.

This has gotten a lot of traffic on its own, and they are experimenting with an interesting call to action for viewers.  

As for those blogs not yet portrayed on the infographic, Eloqua invites and encourages their authors to tag The Blog Tree infographic on Eloqua’s Facebook account in order to be included in future versions and receive an official “Blog Tree” badge for their site.

Where’s the infographic blog branch?