Witches

Baba Yaga

Wicked witch of the West

Wicked witch from Snow White

Good witch of the North

Halloween witch

Shakespeare's witches

The Book Aunt's blog - excellent information on witches in children's literature.  A must read!

Irresistible Children’s Literature - The Benefits of Integrating Newbery Award Books into the Curriculum 

Children's books about witches

The Salem Witch Trials - a short video from the History Channel.