CPAPtalk is a very active discussion group of people who use CPAP machines. In addtion Dr's and Registered Polysomnographic Technologist participate in discussions. it has over 17,000 registered users and over 170,000 articles and has been operating since Sept 04. It is funded by Cpap.com who exerts very little control over the content. A new user is advise to check out the Lightbulb for basic information and then to register. Filling out information about equipment will be a great asset to others in providing input.