I did an "in house" course on Twain at Western Michigan University a couple of years ago. It was not on e mail but a system called CONFER. It worked very well. Sounds like a fine idea but I doubt that the Forum would want to manage it. Too much work responding to students. I am doing seminars for seniors here in Arizona now and they would love to see a Twain course on line. Most of them are very curious, intelligent, eager, and know the computer.