I'm looking for a way to have live video with real time interaction web site. 1 Person will be on live cam while a group will be able to view. example - A Teacher to a group of students at home on their computer. Students can interact using keyboard commands. Like - click Y for yes, N for no. Teachers will set class times and students sign in for the set of classes they wish to view. I want to be able to have 20 teachers for each subject. Each teacher will have appx 20 minutes for their presentation. An unlimited number of students may view. Teacher #1 from 10:00 to 10:20 / teacher #2 from 10:20 to 10:40 and so on. Students to remain on line for all 20 lessons or log out when they want. Students will pay for services. All set up & running with good administration area, user passwords etc.