Klock tracks your time. This would be good for students that struggle with time management. You could have students track their time and use the data for graphs. Great practice in collecting and organizing data.

Free subscription. Has web resources, projects, web lessons, web inquiries, and activities.

Here you can select information and Juice will automatically find more infomation about what you have selected. It seems like a great tool to quickly do research on the internet if you are a student completing an assigment or a teacher planning an activity.

You need a subscription, but if your school could get one it is worth it. There is instant feedback and games that my students love to play.