Padlet offers a virtual bulletin board for sharing words, web sites, audio, video, and creating connecting between items. Padlets can be set up to allow contributions without logging on or they can be made private.
See 30 Creative Ways to Use Padlet for Teachers and Students (BookWidgets blog) for specific types of activities educators might create there. These ideas include Brainstorming on a Topic, Online Student Portfolios, Mind Mapping, Book Discussions, Icebreakers, Geocaching, and more.
Experiment by using padlet to create an immersive learning activity that you can test out with your students.
Example for "Padlet Padlet":