In UTube I found some videos called BookWink that are book reviews of children's literature. One of the sessions I watched was called Sharks and deals with both fiction and nonfiction books about sharks. It would be a great activity to be able to do with students. They list related books on their website BookWink.com. All the videos are available on the web site - perhaps I'll put a link to the site on my school web pages.

There is also a funny one called Librarians.