Normalization Exercise Resources
Following are the resources which I'm using to brush-up my database skills and to teach newbies...


Animated DataBase Courseware 

From Database Design to Advanced Concepts

wofford-ecs.org

Database Design - Normalization

db4u

Normalization exercises 

http://www.sql-ex.ru/

Tons of sql exercises

http://www.tekstenuitleg.net/en/articles/software/database-design-tutorial/intro.html

Database Design Tutorial