My Make-buddy Phillip Torrone tipped us off on his recent PDF-in-iTunes guide. As you might already know, there are more and more PDFs appearing in iTunes, usually as support material for podcasts but they're starting to become a desirable product in and of themselves. Philip and his crew have put together as complete a PDF podcast guide as possible, to help people locate and download iTunes-available PDF podcasts from sources like CRAFT, SkyMaul (*hee*!), Rick Steves and more. Lots and lots of cool stuff to explore.