With this free audience polling system, educators can drop polls into their existing PowerPoint presentations without needing to input the questions and answers into a separate system. Students respond via the presenter’s own unique simple voting web page (http://username.participoll.com) which works on any mobile device. Results are displayed live in the presentation using a standard slide advance. Students may also leave anonymous comments for the presenter. Historic data and comments can be accessed and downloaded via the main website with (Pro version only). ParticiPoll is really good for assessing a class’s knowledge of a topic anonymously and for formative assessment exercises. Because ParticiPoll doesn’t need to be fed the poll questions and answer options, it’s a lot faster to set up than most polling systems. The standard edition is completely free to use; EdTech Digest readers get a free month of the Pro version; just enter the coupon code ‘edtechdigest’ when subscribing via the My Account area on the www.participoll.com website.