I suspect that most of the readers of this blog are already well aware of PedTalk, the original and longest-running public pediatric discussion group. If you're not familiar with the mailing list, here's the summary: started in 1996, archived publically since 1997, usually somewhere between 350 and 600 active readers with thousands of visits to the archive every week.
I mention PedTalk because the list, right now, is on fire with some great discussions relating to insurance in particular. It's one of the few places on-line where you can really read a practicing pediatrician's view on immunizations. Or hear how United Health Care, whom I pick on often, is actually well regarded in different parts of the country. Or read, like here, the real stories of practices who have negotiated with insurance companies.