Now that you know some background info, and have narrowed your topic, try out one of these databases. If you're researching a "hot topic" (i.e. something like gun control, medical marijuana, police brutality, etc.), take a look at Gale in Context: Opposing Viewpoints.
Found a physical book you'd like to get? You'll need three pieces of information: location, call number, and availability. You can ask at the front desk for help finding it, and that's also where you'll check it out. Also, check out Research Byte #12: eBooks.