"Today, during the Practical Ed Tech Summer Camp I discovered a new layout option in Padlet. In addition to the free form and stream layouts there is now a grid layout option. Selecting the grid option in the "modify wall" menu will snap your free form notes into a grid."
Padlet has recently added a new layout option and Richard Byrne provides a step-by-step guide on how to use Padet as well as "ideas and directions for using Socrative and TodaysMeet."
Padlet has been available for quite a few years (and was first known as Wallwisher) and works on a variety of platforms. It may be used collaboratively and Byrne suggests using it as an exit ticket.
Socrative is a student response system and TodaysMeet is a backchannel chat room.