I've known a couple people who've owned Dobies and they have a very high-drive, meaning they need LOTS of excersize and play time, they always need to be kept busy. A bust Dobe is a good Dobe. They need high socialization and they need obedience training right away when they are puppies. You can find for info at these places:

http://www.puppydogweb.com
http://www.dogbreedinfo.com
http://www.gotdogsonline.com
http://www.google.com
http://www.akc.org

Hope I could help you a little bit...