As far as books goes heres a good one...
The
Elasmobranch Husbandry Manual: Captive Care of Sharks, Rays, and their Relatives. Edited by: Mark Smith, Doug Warmolts, Dennis Thorey, and Robert Hueter. 2004, Ohio Biological Survey, Inc. It's an anchor of a book and can be quite dry but has TONS of info. I know at least part of it is online.
http://www.colszoo.org/internal/elasmo_2005/page1.htm
I own Aquarium Sharks and Rays, and its a good book but i'm sure someone on here will tell you all about how Scott Michael's minimum tank size requirements are incorrect.
Here is also a list of some books that someone else posted on her a while ago. These shoud be good to get you started.

Good Luck!
Sharks in Question the Smithsonian Answer Book
By Victor Springer and Joy P. Gold
1989; 187 pages with pictures, in paperback
Sharks and Rays (Time life Books)
By Tricas, Deacon, Mc Coster, Walker, and Taylor
1997, 288 pages in hardcover
The Sharks of North American Waters
by Jose I. Castro.
1983, 180 pages, no pictures, plenty of sketches and good info.
Specific to sharks in the United Sates.
Shark Smart: The Divers Guide to Understanding Shark Behavior
By Richard Martin
Illustration and 177 pages
Sharks
John D. Stevens, consulting editor
Facts on file publications, 1987
Sharks of the World
By Leonard J.V. Compagno
The United Nations Development Program, 1984
The Natural History of Sharks
By Thomas H. Lineaweaver III and Richard H. Backus
Lippincott, 1970
Sharks of the World
By Rodney Steel
Facts on File, 1969
Sharks of Tropical and Temperate Seas
By R.H. Johnson
Pisces Books, 1995