While I continue to refine my magnum opus on barefoot running, I thought I'd pass along this interesting resource I just stumbled across:

Stem Ancestral Footwear's Complete Guide to the Foot. Be sure to click thorough, as this is a multi-page resource.

And, in case someone at Stem is paying attention: I'd be happy to review a pair of Primal Origins (size 42 or 43) here on my site!