Group items tagged

This is a fantastic web 2.0 tool. Upload images and annotate. You can other embed media inside the annotations. Annotations pop up as you click or hover over the objects you add. You can embed the annotated image into webpage or blog. This could be a useful tool for teachers and students. Lots of scope for creativity with layers etc. You can share to a group and set editing permissions for public or restricted people/groups for collaboration purposes.