I don't know if there is a TBL diet forum - this forum has been pretty quiet as there haven't been any shows on lately.
I haven't read the TBL book - I read Jillian's book Winning by Losing.
Is TBL diet a calorie counting thing? If so - there is a very active calorie counter group
here Otherwise - there is tons of useful info here and a great bunch of people.

to 3FC!!