I just finished this book, you should read it too. It's actually not about IBM, but rather about power/money, information, doublespeak and corporate ethics. About how IBM, through Thomas J. Watson (CEO at this moment), ended up concluding a letter to Adolf Hitler with "My wife and my family join in best wishes for you." on July 5, 1937.
First, the side note: if like me you've been slacking during your history classes, it will be a good reminder of key people, dates, and events of nazism and WWII.
But most importantly, I hope it will surface some contradictions between what "feels right" to you and what you actually end up doing, especially at work. It's not a fun book, it's a book that will make you THINK.
IBM and the holocaust on Amazon.com