Research has shown the benefits of “clickers” (i.e., student response systems).
Whether you are teaching a class or delivering a presentation, learner/audience interaction is key.
Polls are one way to do this. There are a number of different options out there–some are free, other’s allow learners to use cell phones, and so forth. The following are few that I am aware of. I have used PollEveryWhere.com and TwtPoll.com in the past with mixed results.
What are your experiences? What others have you used?