http://www.rawmeatybones.com/book-full.html
http://www.rawmeatybones.com/book-ww.html
Fido here are a couple of links that may help to educate yourself on bones.
I have never given my dogs any, but I have been considering it, they are much better for the dogs than say rawhide, nylabones, greenies etc.
You may click on dog.com and click on the forum, type in under search raw meaty bones and there are a lot of people who give bones, and can steer you in the right direction.
Good Luck.