It might be worth checking out the Reform project: http://www.cs.washington.edu/homes/toomim/toomim-reform.pdf http://www.cs.washington.edu/homes/toomim/toomim-

It might be worth checking out the Reform project: http://www.cs.washington.edu/homes/toomim/toomim-reform.pdf http://www.cs.washington.edu/homes/toomim/toomim-reform.pdf and the Zeotrope: http://www.adobe.com/technology/pdfs/uist08zoetrope.pdf http://www.adobe.com/technology/pdfs/uist08zoetrope.pdf for explorations of this idea in an academic context. edit: And, of course, CamelCamelCamel for amazon price tracking: http://camelcamelcamel.com/ http://camelcamelcamel.com/