The Grace of God www.therealpresence.org/archives/God/God_004.htm
True Grace the Gift of God www.catholicdoors.com/teaching/book1/1-18.htm
Grace: What It Is and What It Does www.catholic.com/library/Grace_What_It_Is.asp
On the Means of Grace http://landru.i-link-2.net/shnyves/grace.htm
St Augustine On Grace and Predestination www.ewtn.com/library/THEOLOGY/AUGUSTIN.htm
Grace in Freedom (Karl Rahner) www.religion-online.org/showbook.asp?title=2079
Justification www.vatican.va/archive/catechism/p3s1c3a2.htm#I
What Is Merit? www.vatican.va/archive/catechism/p3s1c3a2.htm#III
The Meaning of Merit www.catholic.com/thisrock/1995/9510fea3.asp
ON-LINE STUDY COURSE:
The Grace of God www.catholicdoors.com/courses/grace.htm