Here are some useful sites:
http://www.akc.org
http://www.gundogsonline.com/default.asp
http://www.infodog.com
http://www.offa.org
http://www.onofrio.com
http://www.teamretrieve.com/tr_main.htm
http://www.woodhaven.tripod.com/links.htm#CLUBS
where I buy all my Retriever training supplies!