Back when I first joined (baptized in '79 but first studied in '76), I did try to research the organization. There wasn't a lot out there. Those were pre-internet days, my friends. The library and encyclopedia had little info on this rather obscure organization. The only book I found was something called "Faith on the March" or something like that. It wasn't published by the WTBS, but it wasn't exactly written by a disinterested observer, either. It was written by a JW and slanted in the favor of the organization.
Once I was deep into the religion, I didn't look into any further. We all know that was forbidden.
I do remember one shock that should have made me wake up. A Bethel Brother invited a few of us down for a visit. He worked in the writing department and showed us the rather extensive library. Normally, the JW tour does not include this room. I was shocked to see so many books by and about other religions. I often wondered how the Watchtower and Awake got quotes from these books, and was told that interested non-JWs simply sent them in. What a surprise to find a stash of "forbidden" books right there at Bethel. It reminded me of "Animal Farm".
Anyway, now that I'm out, I can look at anything I want. The 'net has made a huge amount of information accessible. I am convinced that leaving was the best thing that could have happened. Especially after reading Ray Franz' book, "Crisis of Conscience", I can see this is not God's organization at all.