Definition by W ikipedia: Glogster is an online tool that allows users to create free interactive posters, or Glogs. A "Glog", short for "graphics blog", is an interactive multimedia image. It looks like a poster, but readers can interact with the content. Advantages: It is free It is visually appealing and offers users lots of options for designing their glogs. Stimulates, imagination and creativity : users may inserts text, images, photos, audio , videos, special effects and other elements into their glogs to generate a multimedia online creation. Fosters teamwork and collaboration with classmates Sharing: Posters can be shared with other users on the site, embedded in external wikis or blogs, and shared via many social networks such as Facebook and Twitter. Private, secure, safe virtual working. Unlimited shelf life Disadvantages: Registration is not optional IMPORTANT: to avoid young learners' registration, teachers can op