The Sacrament of Baptism

Here are some good resources I've found on the subject of baptism.

A letter from a father to his daughter

A couple of books:
Water, Word, and Spirit - J. V. Fesko
Baptism: Three Views - Sinclair B. Ferguson, Anthony N. S. Lane, Bruce A. Ware. David F. Wright, Ed.
A Christian's Pocket Guide to Baptism - Robert Letham