Photoxels have posted a great introductory guide to night photography:

“Night photography has an attraction all its own. There’s something about scintillating lights from office windows hanging in the dark of the night—a modern version of the starry skies—that appeal to us. Whether it’s a city skyline, lamp posts on a dark and deserted street, or the front of your house all decked out with holiday lights, the challenge of capturing the mood of a night scene depends on whether your digital camera is capable of night photography and on a couple of simple techniques.”

Website: Photoxels - Night Photography