A good place to find resources about marriage and relationships from a Christian perspective is the Christian Marriage Bloggers Association. They have a huge list of Christian bloggers on many different topics related to marriage/relationships and I have found this to be an excellent place to search for info and help. Some of the blogs are written by professionals in the marriage counseling world and some are written by laymen. I like having both the professional and the layman perspectives. As always, just be discerning as to which blogs you find most appropriate and in line with your values.