The non-profit Explore Mars Inc. group today released its first annual Humans to Mars Report. According to Explore Mars the report "provides updates on challenges, plus progress in areas such as mission architecture design and development, scientific discoveries, policy, public perception, international cooperation and competition, and new private capabilities".
Marc's note: The report is not comprehensive but it does promise a website for ongoing updates and an annual report. We'll see what the website provides once it's launched and how it evolves before passing judgement. This isn't the first try for something like this, the Mars Society and other have tried.