The DIY online club awards badges (called 'Skills' on the site) to students and kids of all ages in exchange for completing tasks. DIY Makers share their work with the community and get patches for the Skills they earn. Each Skill consists of a set of Challenges that help them learn techniques to get the hang of it. Once a Maker completes a Challenge, they add photos and video to their Portfolio to show what they did.
This site lets users create informative, web-based graphics using images and "tags", which function much like people tags in Facebook. Thinglink has the advantage, however, of allowing tags to contain links, media, etc.
"Free online service for teachers to create their own customized portfolio webpage." Includes a personal URL, ability to upload files, links, photos, etc.
Web app lets students use web-connected mobile devices to indicate whether or not they understand a topic, then provides teachers a real-time graph of student responses.
Site allows users to create lists of pros and cons for an issue, then solicit viewer input on weighing the 2 sides against each other. Great for problem solving, debates, etc.