Leah is totally correct. But it drives me crazy. The AP style, the U.S. Government Printing Office Style Manual, and the Merriam-Webster online dictionary ALL spell it out clearly: It is Web site. And it makes sense. Web refers to the proper term World Wide Web, so it should be cap'd. However, I just bought The Chicago Manual of Style and in its Glossary, it had "website" !! Arghh!!