Kliker
A web-based "responder" application for getting real time feedback.
Kliker systems, commonly called "clickers", "Responders" or "Classroom Response Systems". Students send their answers to teacher’s multiple choice questions.
Such systems encourage active learning in the classroom.
Kliker is a web application . The lecturer and participants open the corresponding html page. The lecturer/teacher opens a "virtual room" and participants/students enter. They answer to lecturer's questions and send him their remarks and answers.
An example of this application...