We all love post-it notes. If you want to try something new for capturing text, why not try using digital post-it notes?
Padlet (http://padlet.com, formerly known as Wallwisher) is a tool that lets you setup a ‘board’ on which your participants can stick their virtual post-it notes. You can access the board with a web address (email is an easy way to share). Visitors can then add one or more notes to the board by double-clicking.
Notes on the board can be re-arranged as your session progresses, so you have the same flexibility as real post-it notes. You might decide to re-arrange the post-it notes using an interactive whiteboard (or ask some of your class to do this).
Padlet is free to use and already being used by many teachers.