This is a question that I used to recieve very often, back before researchers wanted everything in digital format. Since the turn of the century, the question has come up much less frequently. Nonetheless, these two threads provide a good start for bookworm researchers:
There is now a forum dedicated to Book Reviews. The basics (Whiting's books) are all there. If anyone comes across any others, I'd greatly appriciate posting new reviews there.
Michael Westbay
(aka westbaystars)
Writer/System Administrator
JapaneseBaseball.com