Have you done any searches on Scholar Google?

It's fabulous! http://scholar.google.com/

Peer-reviewed journals tend to be a bit more objective, but they can get all religious-fervor-y, too. Buyer beware. Bryan Heiderscheit's work (University of Wisconsin) is beautiful and elegant, and most of his recent papers are available free/pdf. I talked with him at a seminar, and I was ready to throw my career to the wind and start over if I could just be one of his students.

If you want to read a bunch of podiatrists (who all run barefoot and have no issues with it, but are constantly under attack and seen as "the enemy" by fervent barefooters) grumbling and grousing, check out http://podiatry-arena.com/ The fellows on Podiatry Arena are a bunch of crabby squabbling naughty boys, but they link some great papers and give some very good clear explanations (while shooting each other down) of findings.