University of Illinois
University of Illinois Urbana Champaign: Structure of a Hurricane
This site has general information on the structure of a hurricane. There are links to the eye, eye wall, spiral rain bands, and the Saffir-Simpson Hurricane Danger Potential Scale.
NASA
Nasa: Hurricanes
Learn about hurricanes and how they are created. Features include video animation, the histories of the most devastating hurricanes and topics such as hurricane naming and hurricane study.