I voted bestseller lists, but I look at all sorts of lists, especially awards. If you want to find some great science fiction, for example, look at the history of the Nebula and Hugo awards. The nominees as well as the winners. Every genre has its own annual awards. Plus, of course, pulizters, national book awards, man booker prize, etc. Wikipedia usually has everything you'd want for any given award.
We all, apparently, use most of the poll's methods. A fun question might be, which method do you NOT use to discover new books?
