Padlet is a great tool for collaboration, communication and curation. It can be set up so that people can add to it without needing an account or just so they can view what others have done. It has a lot of uses and is very simple to use. Adding to that simplicity of use is the ability to embed a Padlet wall onto a Google Site (you can also embed it onto any other site that uses iframes, there is a special setting for WordPress blogs that you can use but you have to be able to install plug-ins).
Simply get the embed code from your Padlet wall, making sure to know your privacy settings first, and then find the embed gadet on the Google Site. Watch the video to see how to do this and how to change the settings for the height and width of the embedded Padlet wall.
An example of what it looks like can be found at https://sites.google.com/a/ames.k12.ia.us/ahs-technology-integration/home/digital-leadership-resources.