Unlikely Stories has always been very good to me. It is an honor to be published by them again. I also appreciate that they are asking their authors to recommend a charity which they can promote. I chose the Center for Biological Diversity (a link to it is at the end of my posted bio on their website).
You can read two of my short fiction pieces here: http://www.unlikelystories.org/content/no-trumps-to-play-and-hard-truths