DigitalGrabber.com has a great article on taking photos at night. This is definetly something the aspiring photographer will want to read as it highlights some of the basic concepts of night photography as well as some very helpful advice.
Digital Grabber.com: “Plan your photos before you shoot! While it is always a good idea to study an area first, this is crucial if you are planning on snapping photographs around dusk! You will not have much time to plan, and if you spend five or ten minutes just getting a perfect angle or framing the perfect shot, the overall lighting will change as the sun slowly sets. And of course, remember when composing your photos that the sun sets in the west.”