If you are interested in home dairying, or already have a cow this is a great site. It's a message board with people who are raising one cow or quite a few for their home dairy needs. I've been able to get lots of good info you wont find in a book. And if you are just considering getting milk animals I would check out this site because it will clue you into some of the realities of milk animal care.
http://familycow.proboards.com/index.cgi