Here's how I used Padlet, formerly known as Wallwisher, as a post-camp reflection tool. The Sec 3s just went on their adventure camp. What better way to find out AFIs, strengths, weaknesses and after-thoughts of the camp than through this tool?
Padlet allows the embedding of text, pictures, videos and hyperlinks.
Hopefully, it is more stable than Primary Wall and less susceptible to lagging and crashing. I have yet to check the shelf life of the posts. I do hope they last beyond 2 weeks online.
There are also privacy settings that allow you to switch to private view than public.