beautiful.

http://css.cscl2005.org/Threads.aspx?f=61

This paper describes findings from a pilot study that compared the
collaborative use by children of three different media formats: a paper
book, a CD-ROM in a standard PC set-up, and a paper booklet augmented
with digital content. These findings show how the book’s ergonomics
provide a flexible and easily accessible interface which engenders fluid
collaboration between pairs of children. These qualities are also
observed when children work with the augmented paper booklet. The value
of digital content is demonstrated in a participatory design activity,
where we find how digital media can ‘bring to life’ the information
presented on paper. In contrast to developments focused narrowly on new
technologies, this study presents evidence for the use and value of
paper, and paper augmented with digital media, in educational settings.