Damien Tougas, of the blog ADVENTUREinPROGRESS, has just completed his excellent blog series on "The Case for Minimalist Footwear".
You can find the whole series at the following link:
http://www.adventureinprogress.com/taxonomy/term/22
I found it an incredibly enjoyable read, very informative, and must have taken Damien A LOT of work. I highly recommend the time to read it for any barefooter or anyone thinking of switching to the barefoot alternative.
Thanks Damien for all your hard work.