In almost 30 years of pro-life activism, I have not found a more dynamic, engaging and effective chastity educator than Mary Beth Bonacci. Her ministry of speaking, writing, mentoring, praying and coming up with terrific ideas to promote the message of joyful chastity is a truly inspiring movement towards a culture of life.
Mary Beth's web site has a lot of neat stuff but I'll link you to one of her recent articles that I found particularly helpful. Once there, look around and get acquainted with Real Love Inc...and with Mary Beth Bonacci.