Upload & Share PowerPoint presentations and documents. SketchUp. Blogs for Teachers and Students. Moodle.org: open-source community-based tools for learning. CarrotSticks Online Math Games. Voki Home. Discovery Educator Network - A Community of Educators. Create A LiveBinder. Digitalwritingworkshop.wikispaces. Diigo - Web Highlighter and Sticky Notes, Online Bookmarking and Annotation, Personal Learning Network. Prezi. Movie Maker. Popplet.