Popplet is a fun and intuitive web application that allows you and your students to create galleries, mind maps and diagrams quickly an incredibly easily. I mean it. Ridiculously easily.
Pictures can easily be searched and added directly from Flickr and Facebook. The same applies to YouTube videos.
Popplets can then be shared on social networks or via email, exported as .jpg or .pdf files and embedded into websites. You can even invite others to collaborate on your popplets, enabling teacher-pupil collaboration or pair- and group-work.