How do you practice Forgiveness meditation?
Bhante Vimalaramsi created a powerful Forgiveness meditation, which he then practiced himself for two years. On his website you will find free resources and excellent instructions.
Last but not least, bhante Ananda has written a booklet, called Open Heart. You can download a free PDF from his website. If you go to the section about Forgiveness Meditation, you will find many more insights on the power of Forgiveness.