Organizations:

American Professional Society on the Abuse of Children (APSAC)
American Red Cross
Amnesty International
Association for the Treatment of Sexual Abusers (ATSA)
Australasian Society for Traumatic Stress Studies
Canadian Centre for Victims of Torture
Captive Daughters
Centre for the Study of Violence and Reconciliation
Coalition to Abolish Slavery and Trafficking
European Society for Traumatic Stress Studies (ESTSS )
Human Rights Watch
International Rehabilitation Council for Torture Victims
International Society for Traumatic Stress Studies (ISTSS)
Israel Center for the Treatment of Psychotrauma
National Child Traumatic Stress Network (NCTSN)
National Center for PTSD
Program for Torture Victims of Los Angeles, California (PTV)
Psychological Assessment Resources
Swiss Foundation of Terre des Hommes (Child Trafficking)

Information (also, see Organizations, above):

CIA monograph on global sex trafficking (no longer on CIA website)
Cybrary of the Holocaust
David Baldwin's Trauma Page
Discrimination/violence against indigenous women in Canada
Ken Pope's website
Marsha Runtz's website at U. Victoria
Mass disasters, trauma, and loss (ISTSS)
New York Times series on sex slavery (requires free online registration)
New York Times article on sex-slavery (via BRAMA webpage)
PILOTS (traumatic stress) database
Psychological First Aid (PFA) manual
Sudan human rights crisis
U.S. State Department Trafficking in Persons report
U.S. Department of Justice report on trafficking

Several Buddhist/mindfulness resources relevant to trauma

Goldstein interview on mindfulness and trauma at PsychCentral

Batchelor, S. (1997). Buddhism Without Beliefs: A Contemporary Guide to Awakening. New York: Riverhead.

Brach, T. (2004). Radical acceptance: Embracing your life with the heart of a Buddha. NY: Bantam.

Chödrön, P. (2000). When Things Fall Apart: Heart Advice for Difficult Times. Boston: Shambhala Classics.

Germer, C.J., Siegel, R.D., & Fulton, P.R. (2005). Mindfulness and psychotherapy. New York: Guilford Press.

Hagen, S. (1997). Buddhism Plain and Simple. Boston: Charles E. Tuttle.

Hahn, T.N. (1997). The Miracle of Mindfulness. Boston: Beacon.

Kabat-Zinn, J. (2005). Wherever You Go, There You Are: Mindfulness Meditation in Everyday Life . New York: Hyperion.

Kornfield, J. (2008). The wise heart: A guide to the universal teachings of Buddhist psychology. NY: Bantam.

Trungpa, C. (2002). The Myth of Freedom and the Way of Meditation.  Boston: Shambhala Classics.

Gunaratana, B.H. (2002). Mindfulness in Plain English. Boston: Wisdom.

Opportunities for Action (also, see Organizations, above):

Animal Rescue Site
Free Tibet
Hunger Site
Redress - Seeking reparation for torture survivors
Stop Violence Against Women (Amnesty International campaign)