Health Plan One L.L.C. is getting into the Web-based health insurance sales field.

Health Plan One, Southport, Conn., has launched a plan shopping site at Document Link

The company, formed in 2005, is offering a wide variety of individual policies and other products from carriers such as Aetna Inc., Hartford; CIGNA Corp., Philadelphia; UnitedHealth Group Inc., Minnetonka, Minn.; and WellPoint Inc., Indianapolis.