Here's a great information source on Vitamin D.

My last blog, about the IOM's new recomendations, led to a comment by one Henry Lahore, who has taken upon himself to keep a "Vitamin D Wiki" site.  I checked it out.  It is a truly amazing source of info on the latest research on Vitamin D.  I don't know HL, but in his "about us" he says he's a retired engineer who seems to be doing this for fun and not money, just like I am.  I am thrilled to have found this site, as I am not nearly as disciplined and complete as he has been.  I'll register for his site, and if you're as vitamin D-obsessed as I am, you can too.  But, I'll also post interesting stuff that I find on his site here, hopefully giving him full credit for alerting me.