http://www.lrcgb.org/
The link is for the lab club of greater Boston- its a great resource. We picked up my new pup "Hudson" in October. He turn 5 months next week and comes from recognized field stock. He is amazing but if you haven't had a lab puppy in your house for a few years - be ready- they are demanding. Its all worth it in the end but they'll definitely change your lifestyle for a while...