The Dental Consumer Advisor - Sponsored by a retired dentist, this site gives a lot of consumer information including a whole section on dental benefits and health plans.
How Stuff Works: Dental Insurance - Short article explaining different dental insurance plans.
Dental Plans and Dental Coverage - Offers information on low cost dental plans and how to choose one.
American Dental Association: Buyer's Guide to Dental Benefits - Information on the variety of dental benefit plan types in the market, with questions to ask before changing or selecting a new dental plan.
Masel Books: All About Dental Insurance - A consumer guide to dental insurance. Covers the costs, benefits, terms, and how to maximize benefits.
California Dental Association: Choosing and Using Dental Benefits - Articles on different kinds of dental plans. Has California focus, but a lot of the information applies generally.
Dental Insurance Area - Offers basic information, health insurance news links, and many links to other sites related to dental insurance.