Steve Case, AOL’s founder, launched the pilot version of his Revolution Health web site yesterday while his competitor WebMD revamped its site . Both sites are consumer oriented. The Washington Post notes that WebMD already has “35 million unique visitors per month and about $170 million in annual revenue.”

Revolution plans to charge about $100 a year for membership in return for which members will receive a call a nurse service, assistance with insurance claim disputes, and assistance with picking a health plan. I found it interesting that the Revolution health site includes a directory “over 700,000 doctors, 150,000 dentists, plus over 400,000 allied health professionals” and since yesterday it has received over 2000 viewer ratings on the listed providers.