I have been taking Latin for many years and I've noticed how helpful it is in understanding English grammar. Could we start a duolingo Latin course? I would gladly help contribute to the making. Just an idea, but I feel like learning an ancient language has helped me learn the modern ones. :)
I took Latin for 1 1/2 years nearly 20 years ago and got straight C's in my classes. If I had Duolingo, or something similar, for my Latin studies back then, I would have gotten straight A's. :-) I would be very interested in retaking the course, Duolingo style, if volunteers with far more free time than I do can create such a course.