Quizlet is an online tool that lets teachers create various types of instructional aids and quizzes. Mobile versions are available.
One possible use: Before conducting a training session, create a very short test concerning the topic. As a way of stimulating interest in the training, e-mail it to the students in advance. You might ask them to print out results and tell them that everyone who scores above a certain level will get some type of reward.
Get people thinking about the topic before the training, and send the message it will not be the same old same old.
We are just beginning to explore this intriguing resource and will be exploring its applications in the future.