Hot Tub Information Central
Hot tub and spa buyers guide.

The Swimming Pool Operators and Owners Resources
Information about installation, water testing and analysis, and chemical safety.

PoolManual.com
Basic information about successful pool care.

Pool and Spa Living Magazine
Information about buying and caring for swimming pools and hot tubs, and links to retailers in Canada and USA. Also sells subscription to its printed magazine.

PoolSpa
Information including a product directory and locator for pool service professionals, builders, spa dealers and retailers.