Hey Cynthia I missed the Fathom stuff. I am a 'tweener right now...finishing up regular school and starting summer school. We already have over 100 students signed up for online math courses this summer, and I'm responsible for getting them technologically ready for online learning!
I just finished the Online Sketchpad course. We had a discussion board, and we also had a synchronous component, but I never got to attend because they only held talks one hour a week. In my survey, I encouraged them to develop an Online Fathom class, because I really think it is a good way for teachers to learn new technology. I'm not sure what you mean in the message when you say a "shared sketchpad" and a "shared Fathom". Could you explain?