Aquafind 
Aquaculture and Fish Producer database including Equipment and Services Suppliers, articles, links to markets, four fish related tradingboards and additional aquaculture resources.
http://www.aquafind.com/Sea-Ex.com
An information and marketing portal for seafood industries, including aquaculture.
http://www.sea-ex.com/
Fishlink
Guide to fisheries and aquaculture equipment and services. A list of companies, not links to them.
http://www.fishlink.info/fishlink/
Northernaquafarms.com
Aquaponics forum. Articles, news, and resources.
http://www.northernaquafarms.com/
