Via Larry Ferlazzo provided via Twitter. Jeopardy like games hosted online. Images, video, and audio can be added to each question. Developed by Michigan States' Center for Language Edudcation and Research.
Backboard automates the process of getting feedback and approval on all your projects-it can handle almost any type of file, but it's especially good with mixed graphical and text media.
It only takes a minute to start a Backboard. Upload the file you would like feedback on, choose a security level, and select the email addresses of one or more reviewers.
Each reviewer will receive a link to your file, where they can come and leave feedback on your document. Every kind of document can be annotated and marked up in the same way, so reviewers do not have to learn several commenting systems. Better yet, you can view all reviewers' feedback in the same place, so you'll never again find yourself merging several documents with different "tracked changes."
via http://larryferlazzo.edublogs.org/2008/12/18/best-applications-for-annotating-websites/
This interactive lifetime on Earth website asks for your birthdate, gender, height and measurement of preference then generates how the world has changed over your lifetime.