Goolag, we meet again... *que dramatic music....*
You say you are really interested in "interfaith" In what respect? Do you mean as, a society that comes togehter and merges to a certain extent and shares it's faith, knowledge and such within the group? Or do you mean more along the lines of "not keeping all your eggs in one basket" and sharing in many faiths?
I think the term interfaith is basically a term where all religion is welcome, like, you wish to talk of christianity.. Go ahead.. Want to discuss Muslims? Sure... How about that buddha...
I don't think you find a division of people who say "Hi I'm interfaith-ism" or something like that... Maybe I do not understand the question and should be silent, then again I wanted to help get your thread going.