Mural.ly not only allows you to post websites, videos, pictures, and published content, you can also import your cloud services like Google Drive and at that to the mix. This makes Mural.ly a natural tool for schools. Once you create a board you can then turn it into a presentation! Voila!
This is a screenshot from a Mural. ly I am putting together to build our STEM/STEAM curriculum here at GPA. You can see the toolbar on the left and the navigation tool on the right. Below the picture is a short introductory video with a sexy voice over.