Digital Photography School has published another photography tutorial, this time on how to shoot sunrises and sunsets.
Off the top of my head, the only thing I would add to this article is to be a little careful about looking directly at the sun when you’re shooting through a an SLR or DLSR. Particularly if you’re using a telephoto lens to shoot, the effects of looking at the sun through a camera can sometimes be even worse than looking at it with the naked eye.