Padlet and Lino are two of my favorite sticky note apps to foster collaboration and create a snapshot of learning in the classroom. They are both web 2.0 tools that do NOT require an account or login, which makes them very student-friendly. Although very similar, there are a few differences. Padlet (formerly known as wallwisher) allows for stream layout, which means that you can force posts to display one after another scrolling, rather than on top of each other and over lapping. Padlet automatically generates a QR code and also provides the option to export/download notes in a number of formats. Lino allows you to upload a background image that notes can be stuck to like a venn dagram or an image to label, and you can color code notes. See Tony Vincent's chart with an excellent comparison of these web apps. Both are accessible through any web-enabled device, laptop, ipad, ipod, notebook or Chromebook, and of course, they are FREE.
Uses for Padlet or Lino in the classroom: