When I was about to start studying for it, I knew looking online would be a good place to start. So, I did just that. However, because I wasn't sure exactly where to look, I ended up looking everywhere.
Because my access to electricity and stable internet was so limited, I would save web pages to my desktop or to a memory stick instead of reading them on the spot. The images usually came out funny when I re-opened them but at least that way, I was sure I could read the text without internet access if I had to.
Also, because my search was so widespread, I read so much but retained very little.
Information overload happened very quickly.
If you're in study-mode and you're trying to avoid such a situation, here are 3 really good websites that helped me focus my online trolling efforts.