What I was asking was if there was a thread or website that covers how any particular novel might contradict another novel or TV canon. For example, New Earth and Deep Domain show Chekov receiving his promotion transfer in different ways.
I doubt anyone has catalogued the inconsistencies that exhaustively. I'm not sure there's a need to. It seems a rather negative way of approaching things. Trek tie-ins have always encompassed a variety of parallel continuities and interpretations; I like to see the different versions of the same event not as a "contradiction" so much as a selection of alternatives.