Loyola Press is the publisher Ascension PSR uses in grades K - 5.  tThe name of the series is "Christ our Life"

http://www.loyolapress.com/  The website is an outstanding tool for many resourses!  There are reflections, games, quizzes and much more. 

St. Mary's Press is the publisher Ascension PSR uses for grades 6 - 8.  The name of the series is "The Catholic Connection"

http://www.smp.org/eSource/  The website is another tool in learning the faith and concepts taught.