Well - that is exactly what I needed. I have been looking and looking and although I found endless discussions about Iodine it was always among people who already knew the basics and I don't. I had never come across a web site that had some information about what it is used for. Now that I have found the McAdams site I know a lot more and I think I may have to try some and see what happens.
I will get some of the lugols, but I am looking forward to the plant based one that the barefoot herbalist is working on and hasn't completed yet.