Thank you (you know who you are) for pushing me.
The very basic information is almost there, and I am adding frequently:
http://roseannster.googlepages.com/
And in the meantime, Cara's is excellent. In fact, the way she approaches the subject is different from the way I do, so even though the information is the same it is very important to look at both when concerned about the B12 issue.
rose