This is my Yahoo group:
http://groups.yahoo.com/group/BARF-lite/
Oreokitty, it's a bit more than feeding them just meat (cooked or raw.) They need calcium, for one thing, either in powdered form, ground bone, eggshells, or raw bones. They need organ meat, and variety is pretty important too.
If you are thinking of a raw diet, here's a very good primer FAQ:
http://www.njboxers.com/faqs.htm
Cooked diets are a bit more complicated...I don't know of any specific sites but books by Pitcairn & Strombeck are very good. (You can search Amazon.)
You can also search Amazon, my book is there of course.
Right now they are giving a discount if you buy mine and Schultze's together.