About.com: Swimming Pools and Swim Spas
Guidance on swimming pool, spa, or hot tub design, construction, and maintenance.
Hot Tub Guide
Information on hot tubs and spas. Compare features and models from spa manufacturers.
Houzz.com: Swimming Pools and Spas
Photos of many different swimming pool and spa designs to help homeowners identify the setup they want.
How I Built My Own Swimming Pool
In-depth information about the option of building your own pool, with pitfalls, advantages, and cost comparisons.
Pool & Spa Outdoor
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.
Information and advice on budgeting, designing, and building a new inground swimming pool.
Information including a product directory and locator for pool service professionals, builders, spa dealers and retailers.
Articles and forums with advice. Directory of vendors.
Guide to pool and spa care, featuring articles, how-to videos, product reviews, and general tips.
Discusses types and constructions of backyard pools, with an online design feature, dealer lookup, financing information, and photo gallery.
Trouble Free Pool
Forum where current and future pool owners can exchange information on pool design, installation, maintenance, and products.