There is more and more research and knowledge about trauma and EMDR. This group, the EMDR Humanitarian Assistance Project, has a good article with video and other links. It's a little more dense than fluffy outlets like Psychology Today--which is part of why it's good.
I do my best to explain EMDR and other mental health topics when folks send questions or I meet people during presentations or other situations. One of my concerns is that there is a lot of misinformation online. So, if you read up on EMDR, pay careful attention to how knowledgeable the writer is!