The US Department of Veterans Affairs, National Center for Post Traumatic Stress Disorder, has a free PTSD101 program for healthcare professionals. The courses contained in the program (and there are many), are divided into 6 different categories and include topics such as vicarious traumatization, PTSD and sexual assault, combat stress injuries, and cultural dimensions of PTSD. The list is pretty extensive. Best of all? CEs available for everyone.
Each course has an audio recordings and corresponding PowerPoint slides. Transcripts of the audio are also available.