VoiceThread is a great tool for collaborative work but can also work with individuals too. Students can post video, pictures, text and then add comments around the content. These comments can be in the form of text or audio recordings. What is particulary good about this online tool is that students can all add comments to the same picture. So students can work in groups and comment about a certain text, picture of video. It is a very flexible tool for educators that has lots of potential in the classroom.