Here are three links to online forgiveness meditations:
Metta Meditation begins with an extensive forgiveness component and training the mind by reconditioning it through the practice of forgiveness. This website is a treasure trove of teachings and meditations. This is a much longer talk interwoven with practice–a live recording from a retreat. Bhante is an outstanding teacher and Bhavana Society is one of the last organizations offering the teachings freely to everyone in true spiritual tradition. Voluntary donations are so important to keep these authentic teachings alive for all of us.
The Ancient Heart of Forgiveness is a 56-minute talk with a 10-minute forgiveness meditation at the end.
Forgiveness Meditation is the 10-minute forgiveness meditation, for those who don’t want to hear the whole talk.
Guided Meditation on Forgiveness is a short 15-minute meditation, very similar to Jack Kornfield’s. The recoding is not very good (which is understandable given the shoe-string budget many operate with) but what is different is the beautiful poem at the end.