Interesting 2008 article about teacher perception and usage with regards to technology integration. This is something that many of us probably see throughout our schools with the integration of more web 2.0 technologies in the classroom.
This tool allows you to build in questions and comments into a reading that the students can access outside of the classroom. The students can communicate within the readings to respond to questions to help check understanding and comprehension of assignments.
This tool allows the teachers to create formative assessments that can be accessed by the students using their web-enabled device. The tool is free and can be used to create different types of quizzes.
This tool allows you to create an online portfolio that your students can take pictures of their work and add it to their portfolio, which you can access for free online.
Sabine,
With regards to cost, it is free. I am unsure about how much storage that they give you to use on the site. That was something that was not talked about at the conference where I discovered the tool.