Note on how to use gravatars to navigate
This site has been built with projects in mind, and so to help navigate through the various articles each major project will have its own gravatar. Clicking on the gravatar – either in the post header or the projects box – will show all the articles related to that project. Cool huh?
For example the first project will be everything to do with the 67 13w, this is the gravatar for that project
And for the sake of completeness this is the gravatar shown in the projects list