This is an awesome app for education events and conferences to get your audience engaged.  I've used it while presenting on two screens.  One screen showed our presentation and one screen had questions throughout the presentation that asked the audience different questions to get real time feedback.  We also had questions prior to presenting where audience members participated.  Audience members used their cell phones to participate and when their answer hits the screen its almost magical.  Brilliant web concept that eliminates hardware required.  I would highly recommend this for teachers.  I'm looking forward to a more expansive list of options to be utilized, but its an innovative product that can be tapped at low cost. 

I really like Poll Everywhere. It is surveys simplified. It is quick to set up, very visually pleasing and just plain cool. I used Poll Everywhere to get ideas for my nonprofit's new name. I listed seven or so of the best names I had heard to date then loaded them into Poll Everywhere, then sent the link to the poll to many of my friends and family. The results were awesome - I was able to see real-time results and stats with cool graphs. My friends could respond by email or even via SMS if they wanted. Use it. You will like it. (Oh, and it's free until you hit a threshold of responses.)