Brian Walton, of Scout.com, has started his own personal Cardinal blog called The Cardinal Nation. Besides being a fine writer, Walton often gets some good scoops from the Cardinal front office so there’s another reason to keep an eye on his blog.
Two posts to point you to specifically. The first, which may become invaluable during the season, is a roster matrix for the ENTIRE farm system. I’m a huge fan of other people doing work that makes my life easier and this certainly falls into that category. The second post details some releases that the Cardinals made in the low minors — no real prospect of note.