Charwin Curlies
Charwinccrs.com
Tika
Solimar Curly-Coated Retrievers
Aarowag Curly-coated
Retrievers
Curly-Coated.com
Other links:

Curly-Coated Retriever Club of America
Curly Coated Retriever Club of Great Britain
Northern California Curly-Coated Retriever Club
CCRC - America
CCRC - Great Britain