"A superb online whiteboard suite of tools, including a random name picker, classroom sound level indicator, display a QR code, drawing and text tools, traffic lights, timers, clocks and dates, and even a fab exit poll tool. You can even change the background, including your own images to display extra resource information, or use your computer camera to show live video like a visualiser."
"An amazing feedback app. Create QR codes and attach audio feedback for students/parents to listen to. QR codes are emailed to you after requesting them from the app. Glue into books to evidence your feedback. Get your students to reply to begin a conversation about their work."
"A superb 3D coding platform for building the skills to build simple code and to understand the basics of algorithms. You can also create your own game levels and share them using a QR code."
A very useful livebinder by some teachers on QR codes in the elementary school with information and guides. I've found this is pretty updated even though the first page has a description from 2010. Very useful if you want to use them in your classroom or library at the elementary level.
"Create links & auto generate QR codes on paper strips to glue in books to show pupils when their work or a display has been shown on social media or on your blog. Great for parent's consultations and evidencing for others. But more of all, the pupils love it! Adaptable so you can add your own social media icons."
Get instant feedback from an audience or class using this superb site. Set a question and a choice of answers. Then others can follow a short link and choose an answer using their mobile or computer browser. The site can also generate a large QR code at the press of a button for easy linking. Results are shown instantly on your screen and embed on a website. Try voting at http://vot.rs/49104 and see the results at http://mentimeter.com/public/7048bfdda5cc.
http://ictmagic.wikispaces.com/ICT+%26+Web+Tools