Free Classroom Response Tool

Check out this awesome way to poll your class. The learners can submit answers via text, twitter post, website or blog, and you collect all of the responses. The results are updated live within a browser or PowerPoint slide. You can also download the responses from multiple polls into one spreadsheet. This would be a great way for informal assessments or soliciting any kind of input from the learners. As long as you are polling 30 people or less, it is free!

http://www.polleverywhere.com