Many of us switch to a raw diet because we want to offer our canines or felines a healthier option.  We tend to fall in the trap of feeding them the same things and not including enough supplements and variety in their diets, especially as they age or their nutritional needs change.  There are lots of great resources out there and the Whole Dog Journal is one that I highly recommend.
The Whole Dog Journal is available in printed form or digitally and is full of lots of great articles on health, nutrition and training.  The December issue just came out, check it out at: www.whole-dog-journal.com